How do you guys not burn yourself out from writing?

I go into my senior year of college soon. I have three wips that I haven't worked on in some time and I'm about to do A LOT of writing this semester. I'm taking a writing class, I'll have to write papers/journal for my other classes as well as do my capstone. It's so much. I want to continue writing fanfic, but I'm not sure how to make room for it. I'm also stressed. Right now, I feel like there's not enough time in the day. I genuinely want to finish my stories and not abandon them. What should I do? Write in small increments? Wait until I'm less busy? Stop writing until the semester ends?