Stay busy and broke. You won’t have time or money to eat. :) Just kidding, I would recommend writing out a meal plan for yourself every day. Breakfast, lunch and dinner. All of them are important. And I really don’t know what your schedule is like, but running and walking is free! I’m sure you could squeeze in 20–30 minutes in somewhere! If you have an iPod, I would highly recommend making a workout playlist. It really helps to get motivated. I think they even have Podcasts you can download specifically for working out.