Scared that I'll panic if I live alone

I don't know if I'll ever be able to feel safe living alone. I'm 19 and living in uni dorms right now - but it's annoying to live with people and have to share the bathroom and kitchen with multiple other people who don't clean up after themselves. I have my own room but I'm not actually alone, I know that I'm not the only one around if something bad were to happen. But I think if I live alone, I would just sit on my bed all day, panicked, because every noise I hear I will think is an intruder. It already happens where I am. I have to check under my bed and in my wardrobe sometimes because my brain goes "what if someone is hiding in there?" But in a bigger apartment that's not just the size of a bedroom, I wont be able to see the whole place from where I am, I would have no idea if someone would be in the other room unless I left the room I was in. And I could get cameras but I know myself, if I got cameras I would never put them down, I would never be able to do anything because I'd just be glued to the camera.

And I know i'm not just making up worst case situations because I've already experienced the fear when I'm home alone. At home, whenever the others are out I just sit on my bed, afraid of every noise, or go sit in the living room so I can keep my eyes on the door. I hate vacuuming when I'm home alone because I wouldn't be able to hear the sounds of an intruder over the vacuum.

I just don't know what to do. I so desperately want to live alone and regain more freedom and responsibility (and not have to share with gross people haha) but I just don't know how I can ever cope with constantly hearing sounds and being freaked out.