I took lexapro (anti depression drug, ssri class drug). It took about 1 month to be mostly functional again and about six months to be back to normal.

I took all the pressure off, stopped coding but continued university. I still finished the semester with excellent grades - but it was business school.

Never experienced anything like that ever again. I work hard, usually 7 days a week, but I'm careful not to push past my limits and I keep stress down, exercise, sleep well, and try to eat healthyish.