Get on that adderall son. Edit: OK, that wasn't insightful enough of a comment for me to leave without adding on to it. What I really mean is: go see a doctor, talk to them about your attention difficulties, and see if something can be done to help you so that you can focus. You should also loop your parents in on this conversation and ask if they have noticed your attention problems, if they think you may have ADD or ADHD, and if they think this would be beneficial/etc. Also, seriously, at 18, almost everyone lives with their parents. I know 28-year-olds still living with their parents. That's really not a big deal. Don't start beating yourself up about it until you become one of the 28 year olds.
I agree with this. What you relate sounds like depression to me SeventhProphet. I've had bouts that were crushing, and extended. Seriously, see someone if you can. That said, ultimately, I have found that I have developed better strategies for working through that stuff. Also, I think it's very likely that your neurochemistry changes as you get older, and that might make it easier in time too. IMO action is the ultimate cure. Do things that you will be glad you did the next day. Force yourself to do one thing each day that qualifies as that, even if it's small. It's powerful stuff.
I do have depression, and psychosis. I'm not on meds though, my parents don't know and i'm not seeing anybody. I know that you're all going to tell me that i just need to talk to someone, but i'm worried that if i do that my parents will ship me half way across the world (it's a long story), and that would upset me. _refugee_ i'll look into ADHD, thanks for the advice.