I am in a similar situation, so what I am working on is how I respond to the stressors. I try to stop and assess my emotional state, and decide whether it really needs my attention or if it is something I can just let go.
One of the ways I cope is to assure that I have down time every single day, where I lounge and just stop thinking for a while. I usually do this at the end of the day.
I also work on prioritizing. Obviously, work and studying are not optional, but I will rearrange my workout and social schedule as needed, and assert my needs with others as needed.
Hmm, if I think of anything more specific, I will post it, but those are some of the general things I do to try to reduce stress.