I have no friends and I never leave my house. You just have to make a choice to just refuse to be involved with things that could get you in trouble. It's easy when you feel upset or depressed about something to want to go to a club and want to drink, but instead I just force myself to sit and feel it and deal with it, and try to grow from it, because I don't want to go down that path. I'm one of the most isolated people in existence right now, but it's worth it because if I wasn't making that decision I would be throwing away my career.
