I'm in a similar situation. I'm in my first year of university and I have no idea what I want to do. I am pessimistic and I feel like I hate everything and that there is nothing I want to do as a career. Due to this, I feel like it's making me lose motivation to do well in school and as a result I have become very lazy. If I have nowhere to go, I will lay in bed all day; not until 3pm like most people, but until 8pm. I wake up at 8pm and go to bed at 5am because I like to be awake at night away from everybody else. I am a very heavy sleeper and when I wake up after 12 hours of sleeping, my kidneys hurt from not going to the bathroom and I am too lazy to get out of bed so I'll just lay there and try to sleep more for a couple more hours. On school days when I get home I will nap until 10pm and often miss supper.

My comment has no point really, I just felt like I could somewhat relate and thought I would share.