You're the same anon that raged at their mom?
Way to go on going back to college! Be the best barber you can be, anon. Trust me if you're good at that class and take a genuine interest in it, girls get attracted to that kind of thing. Indicates someone has potential.
Gym is good, maybe be sure and get outside a few mintues a day too. If you can afford it a dog is great way to combat laziness. You can get a low-maintenance little one that is cheaper and will probably only require a 20 minute walk a day or you can go full hard mode (be prepared for your life to revolve around your dog if you do this) and get an intelligent, high energy breed. They'll require an hour walk and probably another hour of training/play/interaction a day.
If not maybe some plants to take care of.
It's nice knowing something needs you. Also help w/ chores around your house. Make a goal of doing one chore a day on days you don't have college. Dishes take like five minutes.