being almost twenty years old, I'm at the point where the options for my future are narrowing



Stop what you are doing. Recognize the absurdity of the above statement. Do some hard, physical labor for a year. Slow your mind down. Breathe. DON'T do any drugs/alcohol/tobacco.

Become like a machine and become good at it. When you are stable re-evaluate.

Recognize the absurdity of your statement above. You are constricting and restricting yourself.

Frank Lloyd Wright's best work was after 65!