Basically, I cannot stand people who will not bow to the Truth.

I always had this trait, but I noticed lately that it is becoming worse, and has consequences.  Ironically, the main trigger seems to be the sequences. They gave me a confidence that sometimes frightens me. There are multiple manifestations:

• Before, I had no problem whatsoever with believers of various religions (as long as they don't do bad things). I was still acting like an agnostic at that time. Now I tend to think less of them.
• Before, I tolerated disagreement about some subjects, like the supernatural. Now I loath any form of epistemic relativism.
• I now tend regard anyone who isn't Bayesian as either uneducated or moronic. Same thing about materialist reductionism, only with a slightly lower confidence. (And my inability to convince people of the validity of Occam's Razor doesn't help.)
• I sound more and more arrogant, and possibly full of myself.
• My urge to rewire the brain of anyone who won't listen grows stronger.

The closest semi-famous embodiment of this character trait I can think of is Xah Lee. I like much of his writing, but he can be very blunt, sometimes to the point of insult.

Needless to say, I do not endorse all these changes. The problem is, while I know I should calm down, I just can't lose when I'm confident truth is on my side. I'm not even sure I should. (Note however that I'm rather good at losing to evidence.)

So, what do you think? What should I do? Thanks.