As resident hyperlocal cryonics sort-of-expert-I-guess, I do not recommend this; see mukashi's answer. Relatedly: The legal hurdle is that it's considered murder.
Further to it being legally considered murder, tricky plans to get around this are things that appear to the state like possibly a tricky plan to get around murder, and result in an autopsy which at best and only if the cryonics organisation cooperates leaves one sitting around warm for over a day with no chance of cryoprotectant perfusion later.
The longer you wait, the better the cryopreservation technology may become. If and when revival technology becomes available, then the later you were frozen, the better your chances of successful revival. Last in, first out, most faithful reconstruction. Even enthusiasts regard it as a fairly long shot, e.g. 10 to 20%. Russian roulette with only 1 empty chamber.
And the more people duck out of making that future, the fewer working to make it happen. There's an XKCD about that.
Are you aware that the chances of not waking up at all are very high, right?
You are contemplating suicide. Seek help.
Meta: I think that having oneself cryonically frozen prior to first being near-death is likely to be a bad idea. And I think that is worth calling out. However, I also think that it is something plausibly worthwhile for certain people, and thus deserves to be discussed seriously. So then, claims that it is a bad idea should a) include reasoning and b) be comments, not answers.
I think this is not possible. The closest I've heard is some rumors (don't want to source it, to protect the source) that if you have a neurodegenerative disease, there might be things that can be done. If that is the case, you might want to talk to cryonics organizations.
It might be worthwhile to address the reasons, if not here then with a professional. There are certainly good reasons to want to get frozen before being near death (e.g. a chronic physical or mental illness that causes one severe suffering yet does not reduce life expectancy and can potentially be cured in some distant future), and possible options are best discussed carefully and in depth.
If you know or suspect that you had a childhood trauma and may have a CPTSD from it, then with a trauma therapist. If your desire to do high-risk time travel into the future is because of something else, then probably with a relevant mental or physical health professional.
A psychologist, and potentially also a psychiatrist. But consider Navigating And/Or Avoiding The Inpatient Mental Health System. My judgement is that it is still very much worth seeing a psychologist or psychiatrist though.
Another option would be to discuss it with your primary care physician and have them recommend a specialist to follow up with.
For a number of reasons, I'd like to wake up in the future instead of sticking around in the present, and I'd like to know about the options. Is there a cryonics company which will freeze me without me first being near-death, and without qualifying for euthenasia (which I probably wouldn't)?
My understanding is that there's legal hurdles that prevent cryonics companies from freezing individuals who aren't dead or near-death. This makes my mind generate potential workarounds, such as (after setting up arrangements) stating I've taken a pill which will kill me in x hours, to give the company the impression I'm near-death. For those more familiar with the process, could something like this work? What other options are there?