What should I do for managing my time? I'm an obese person who recently started going to the gym, and I actually feel better now. But as my semester have started, I have 5 courses this semester along with my thesis. I'm struggling a lot, please help

 College can be stressful. Trying to fit in exercise can be tough. In fact, during my undergrad, I only found time in the last semester. But for Masters, I got smarter and used to crush the exercise with 1 hour elliptical. I was used to 30 min but I saw the machine left at 1 hour by a previous person and was instantly motivated to try it myself. Use scheduling, calendars, reminders, study buddies, rewards.