In shape?

I need to do more to stay in shape this summer. It's so easy to let things get out of hand when you don't have a routine. I've been so busy with everything and getting ready for this fall, that I've gained around 5-7 pounds. I used to bike regularly with my friends, but everyone is doing their own thing this summer so much, we haven't done that. I am going to start jogging 3 or 4 times a week and lifting weights. I'm worried about gaining weight during college, but it's already happening. I get to get a grip.