Do you want to get back into school? If you feel like you've been trouble-making I would definitely suggest trying to go back with a fresh mind, and a new attitude... You can definitely change. If it's from peer pressure (I got in trouble in school all because of that reason, 'friends' telling me to skip with them, etc) it really is good to drop those friends... You're future relies on it, I'm not going to lie. You still have a chance.