Is it a bad thing to not want to be around people?

So I have been going through a lot lately with going to school full-time and working part-time, and it’s getting to be a lot. I am a senior in college and will graduate next year, and it’s just been a lot with these upcoming assignments plus finals. I still live with my dad and, he’s always wondering why I’m always in the room, but it’s really just because I’m stressed, anxiety is kicking in again and I don’t have the motivation to do anything. It just seems like a problem with me staying in the room which I don’t understand why since I’m not bothering anyone. It’s just that I would rather be in the room when I’m already going through a lot. Also, it’s not like I don’t go and sit in the room with him because I do.