Help? I dont know

Lately I've become a lot more indecisive and I think it's because I don't care so much about things anymore. But it makes me sad because decisiveness was a property that I really liked in myself. I've been disappointed so many times in the past month that I think I just gave up on it and I'm solely focusing on passing the year in university. I feel lonely, yet I want to be alone at the same time? When I'm with people I can't wait till I'm home and when I'm home I feel so alone.