I think that's perfectly rational - It's normal to want to spend time on your own. Personally, I recently moved in with my boyfriend and I cannot say that I've reached the point where I want some 'alone' time. I can say that when I lived with my parents, I craved alone time all the time. I felt like you do, like everyone wanted a piece of me but no one understood that I just wanted to rest. My way of dealing with it is cutting myself off for as long as I need to. For example, I would turn off my cell, my fb chat and every other messaging system I have, put on my head phones and lock my room door with a sign that read 'BUSY!'. I didn't work too well the first few times I did it, but after a while, my parents got the hint and started leaving me alone until the sign was off. It got to a point where all I had to do was put up the sign. Maybe consider something like this? You didn't really mention who you live with or if you have children, so I'm not sure how well this will work for you, but it might