My very brief 2 cents: Exercise. It's clinically proven to help combat depression. Also, don't worry so much about compensation so early in your career. Experience is worth much more than $ to you at this stage.
I think that exercise would be a good start, so I'll check the local gyms, it would also give me something to occupy me during the days.
About compensation, every piece of advice I got so far was about properly negotiating the first because it does not grow that fast (in Europe).
Don't spend the money on a gym membership until you have it.
Another couple things I'd add to what others have said:
Get enough GOOD sleep.
Read. It will help you both with focus, and give your mind a break from the things that are heavy on your heart.