I didn't know it at the time, but depression. I was away at college, and it was my first time really being away from home. And I was an out of state student. By the spring semester I was so lost, my concentration was gone, I had no focus, I was sad and home alone a lot. I eventually stopped going to some classes. It didnt help that they had me taking calculus, physics, and chemistry that semester. And not the introductory classes, the courses for the science majors (I originally was a meteorology major). I didn't return the following year. Went to community college the following year, failed those classes too. I gave up on school and beat myself up over it not knowing why. I eventually did graduate, just much later than originally planned. But I was stabilized since I figured it all out.