I'm kind of in the same boat as you. I'm 21 and about to go to community college next semester. In the meantime I'm a provider for the IHSS program in which I take care of elderly people in their homes. Thats pretty much my life right now, I don't feel like ive got anything going for me. Lookin back I wish I would travel back in time and tell my younger self to stop slackin off in school. My grades were never bad, but I didn't really put any effort into planning out my future and now that Ive graduated I feel lost.

I'm sorry that you feel like you're a waste of space, but I don't believe you are. Your parents obviously love you and just because you're stumbling a bit in life right now doesn't mean thats going to change. You'll find your way eventually, just because you're not going at the same pace that the people around you are going doesnt mean youre going to fail