I had a nervous breakdown around your age. I know, for myself, I needed to slow down, and realize the world is hypocritical, unvirturious, and there are no simple answers. The "successful" people around you have usually been coddled, and helped out greatly by family members. I put successful in quotes because I'm not sure what it means anymore. The only advise I have is slow down. You have you whole life ahead of you. I know the thought of having your whole life ahead of you is daunting because you don't want a mediocre life, but don't beat yourself up you will find many people are going through the same symptomology as youself, but don't tell anyone. One other thing, I don't know where you got the idead that people in tech are here to make the world a better pace. They're here because they want a comfortable lifestyle, and hopeing to find the golden app, game, website, etc. In other speak, they are trying to make money, attract the right girl(tech groupies should be watched carefully. They can be pretty shrewd, and use the Nerd persona to their financial advantage) and just live. Some people in this industry are so myopic they believe tech is the only way; it's not. It might not even be a viable career in a few years. My final advise, from someone who still struggles with many aspects of life is it gets better as you age. Your physical sysptoms will get better. Oh yea, try to not let societies norms, or usually misconceptions get in the way of your happiness.