How do I deal with my annoying family. I've been forced to move in with them due to financial reasons (I am 19 and I was living in college but dropped out. Will be returning in September but until then I'm stuck with them...)

They annoy the piss outta me. Nagging, aggressive and mean and if it makes matter worse I don't even have a bedroom. I'm sleeping on a bed in the middle of the family room. So I have zero privacy.

Now. My plan is to use the time and free food to loose 70 lbs (I'm severely overweight) and to work (to pay off my $1.3k dept) and also work on my music career.

Besides those 3 things what should I do to keep myself sane.