I have always been a very good student. I go to Notre Dame and have done well academically my entire life. This semester, I have had serious trouble with my focus and motivation to do any work. I turn off all distractions and put my phone in another room, yet I just find myself staring at the screen when I try to type papers or do any kind of work. I feel like I'm losing my mind, and I can't get my mind to really focus on one thing. What is wrong with me?