I think I did experience something like that. When learning new skills to change positions, I found myself eager to learn even after a long and tiring day or week if I concentrated on my dissatisfaction with the job I had that time. When contemplating about the phenomenon I kind of described it how a Sith is supposed to work, using his negative emotions to channel energy into the task. And indeed, by using this "passion" to "gain strength/power", I did "gain victory", so it worked out, as the Sith code preaches:)

Slightly off topic, but I like how user "chaosmage" made this post about using "Vengeance". I wonder if this can be classified as a case for Nominative Determinism.

Russian military might. They have been hearing it all their lives:
learning about historical victories, watching movies about it on the TV, seeing the victory parade every 8th of May...

And they can point to the map, and show that Russia being the largest country by territory is proof enough.
Hell, even most of the world believed it until March.

"Objection against "out of desperation". How is it desperation to lose something that you didn't own yesterday, just tried to take from someone and failed. (Yes, I am sure that Russia will spin it as desperation, but it is not.)"

I would make a comment here:

Losing a couple of provinces in Ukraine that just become part of the Russian Federation recently should not make "Russia" desperate. However, I believe we have a principal-agent problem here:
Russia can afford to lose this war, but the current Russian leadership does not. I think they believe there is a good chance that they would be removed by a coup or a revolution if they loose face due to military defeat.

I think the past 6 months of the conflict supports this view:
The Russian Armed Forces have been inefficiently throwing hard-to replace weaponry and manpower trying to conquer the rest of Donbass, while pretending this was the plan all along. It is a relatively worthless region(large portion of the population having fled, majority of industrial infrastructure having been/would be destroyed), and replacing lost equipment and professional personnel (especially officers and special operation units) will take many years, making Russian conventional forces severely weaker.
This seems to make as much strategic sense as trading your queen for a pawn.
That is, if you are using the POV of Russia. However, if you are considering the decision is made by the political leadership, hoping to hide that they screwed-up, it makes a lot more sense.

We are currently at this spot: 47,5214910, 19,0456420

https://maps.app.goo.gl/swiXTCJZRqqWEpKBA

We have a blue and a red umbrella.

Thinking through my history of improvements, what seems to have worked for me:

1. Realizing I am dissatisfied with something.
2. Describe the problem and the desired outcome.
3. Search for solutions, compare multiple options.
Most techniques might require some tinkering/experimenting before they actually become useful. The longer feedback loop makes it is easier for snake oil salesman to enter such fields. To avoid these, check if the people promoting the solution are actually far above average in the ability the solution is supposed to grant, and if it is actually coming from the system and not from other factors. (e.g., if someone is selling you a way of making money, but the majority of his income is from selling seminars or running podcasts about it, that's a red flag)
4. Try implementing several versions, and keep using the one that seems to work best for my situation.
5. Practice the method, it should be running mostly on system one if you want to apply it effectively.

Example:

1. There was a period when I was dissatisfied with my grades during uni.
2. I thought about the issue and realized most of it was due to having started a second major and additional outside activities, so I had less time and more material to learn. I realized I needed to get more efficient at studying.
3. I searched for solutions on the net, and came across multiple memory enhancing tricks, mostly based on association and/or visualization of spatial environments. As these were usually promoted by memory world champions, whose records were verified and recorded (and who claimed to have been average before they started using the promoted material, for which there was no counter evidence), the techniques looked plausible enough to put in the required effort.
4. I tried two main versions: one using simply associations and one using mainly spatial locations (memory palace). At the start the first one seemed to work better, but with a bit more practice I realized the second one is the stronger technique that I need.
5. Through the rest of uni I kept practicing it even when it was not needed, making it an always ready to use skill of mine, cutting time required for cramming drastically while also improving the results.

Another important aspect is that may happen when searching for solutions, is realizing that it is possible to have it better, you can (and could already have) create a world, counterfactual to the current one, where you are way more satisfied. 

Probably my strangest bugfix was realizing that sometimes I get too immersed in an activity and go to bed hours after I planned to. This still happened even after I setup alarms/reminders for specific hours. I would just turn them off and continue browsing/playing/watching "just for another 15 minutes", which would sometimes turn to hours.

The solution was to set an alarm with a title and decision that I am not allowed to turn it off, unless I temporarily stop what I am doing for a minute, during which I change my location to another room, and talk to one of my shoulder advisors ( https://www.lesswrong.com/posts/X79Rc5cA5mSWBexnd/shoulder-advisors-101 ).

This had the desired effect of changing my frame of mind to one that can stop the activity for the day and start doing the night routine I planned for that day.

Exercise:

Paraphrasing is useful because it forces you to check the parts of the concept (elements and their relations) you are about to explain. While just giving something back word-by-word could hide the lack of understanding, if you understand the concept, you should be able to give back the details in a different order/point of view. If you understood the main parts, and how they are connected, you can give a different explanation (changing the order/showing different sides, replace parts etc), while also retaining the meaning of the content. While trying to do this, you have to make sure all details are connected properly (and are actually observed, as a lot of them may be be assumed to be known implicitly), otherwise you will not be able to follow through with the exercise.

A good analogy could be building a lego object: if I show you how to do it, and then you have to assemble it again from scratch, you should be able to succeed in this while starting at a different part and adding the blocks in a different order than I did. This requires a much better understanding than just copying the very moves I made in the same order.

Example: I explain to you, how to make an omelette (heat up pan, put on oil to avoid the eggs sticking to it, pour scrambled eggs into the pan, use the spatula to optimize form/density, add grated cheese then fold the sides on top). To paraphrase the process back to me, you should understand how the steps are connected, so even if your circumstances are different, you can replace/move around object to fulfill the meaning: the point is to scramble and fry eggs on an open surface without burning them.* If you do not have a pan, a pot may suffice, you can use butter instead of oil, and so on.

*a valid point could be made that omelette is more than that, please excuse the simplification I made for demonstration.

It would be nice to collect examples on such things (e.g., studying X in the long term helped me with Y problem through concept Z). It could help people decide what to study and insipre them to keep doing it.

I would add that often automating the task is way more fun than doing the task itself. Once I spent a lot of time automating something that was so mind numbing (simple, boring, but required constant focus as a small mistake would have had negative consequences) that I thought I rather shoot myself than do it again.

Although it turned out to also have saved a lot of time in the long run (it was not clear during that time how many times I would have had to do the task), I would have still chosen automation for the mental health benefits.