In my experience, everyone who said "Don't do it" is in a better position than I was in. A person with a problem will eventually solve it, or not. A fundamentally flawed person will have only have more problems, generally of the same type, again and again, forever. It's easy to confuse one situation for the other. Most people are not deeply flawed, they're normal people who are temporarily overwhelmed by normal problems. Anything they say to you probably won't resonate. Advice from those who have plenty always has to be filtered through a lens of "easy for you to say".
The only honest thing that can be said in this situation is to evaluate your life with clear and unbiased perspective. Are you a normal person who is going through rough times, or are you the kind of person that, for whatever reason, genuinely has no hope? The latter group is very small and if you're in it, you'll have known it for a long time. Odds are that you're better off than the truly forlorn, and you don't need me to tell you that because you already know it. Count your blessings and try to picture a better life.
I'm sorry if my candor offends some people, but life is too short and we're too smart for platitudes. I hope that you get through this.