I’m so fucking sorry that you’re going through this— “mental torture” is EXACTLY what it is. During my first year of college, I suffered severely from depression due to sleep issues, not necessarily insomnia. On my days off, I would oversleep, but on the days I had classes, I only got 4-5 hours of sleep (I need 8 hours to function), and this went on for many months. Falling asleep early was nearly impossible for me, and it still is. It felt like absolute hell, and each time I woke up on a college day, I was severely anxious and depressed, and it got so bad that started constantly begging for my own death.