I'll give a different perspective. I'm 27. I went to one of the best schools in the country, was a straight A student up until 15 years old. If I had kept my head down I could have probably made it to Cambridge or Oxford to study a science. But no.. I started smoking cannabis, felt like I had friends, and my academic life fell to pieces. Ended up getting into a top 10 uni anyway to study a science.. flunked that because I was still smoking and hadn't resolved any of my personal stuff. Spent 3 years working. Now I'm studying again, nothing nearly as financially rewarding as what I could have been doing.
I may have not suffered in the way some of you have. I had a relatively safe and secure childhood. But I had the opportunity to really make something of myself, and I threw it away because I wasn't confident enough to just keep my head down and be myself, to be nerdy. In hindsight I don't regret it, life happened that's all. But I'm 27 and still not fully established financially etc. I feel like I've wasted several years of my life though, and you can't get that time back.
There's an insane amount of pressure on young people to "be" something, to be a "success"..
But read and ask older people how they really are. People chase dreams because they were told to, turn 40, and realize they're still not happy even though they have made lots of money and done a lot.
Forget that nonsense. Make YOU a success. Achieve the internal stuff. Make it to one month clean.. 6 months.. a year.. 5 years. That is a real achievement. It might not reward you financially, others will not understand, but YOU have done something and proved your own inner strength, and changed your being through that process. THAT is real success, a change of being. Learn to draw, play music, just do stuff that you couldn't do before.. exercise your mind a bit.. again, that's real success.
Also don't be so hard on yourself. Life in the modern world is fucking confusing and painful for a lot of children and teenagers. Give yourself fucking credit mate, you made it through! Suicide just makes you another insignificant statistic that no one will remember. The best and most poetic middle finger you can ever give is to make yourself a success on the inside.
Also, relax a bit