It's not messed up that you feel this way. Some people just don't mesh.

If you're stuck in a lease there might not be much you can do but try to deal with the situation.

Maybe you can work yourself around this person's schedule. I know that sounds like a lot of work, but it might save your sanity. For example, if you know for sure that she is always home on a particular night at a particular time, you make sure you always have a plan for that time. That could be the time you make for yourself to read a book in your room. You could make that grocery shopping time, laundry time, gym time, etcetera. You get the point.

I realize it may be difficult if this person is always around, but obviously, you need to take care of yourself. That is key here, I think.

Do you have a television in your room? Is there a room you can sit in and tell her that you need *personal time* and you'd like to not be bothered? Do you have family you can visit on at a particular time when you know she's going to be home?

Or, maybe you could just tell her exactly how you feel and that a change needs to be made.