Alone time

I used to live alone and I loved it. I loved the fact that I could be in my own space and no one was there to judge me. I could do whatever I wanted. If i wanted to stay in my Pj's all day and lay around on the couch and be lazy that was ok. I had my own routines and habits and it was great. sure sometimes it got a little lonely and I wished I had someone there, but those were the times i would pick up the phone and make plans with a friend.
I don't live alone anymore. at first I thought it would be really exciting, living with people, having someone there to do fun stuff with and not being alone. And we do have times when it's like that, when everyone gets along and we have fun. But honestly, for the most part I miss living by myself. Sometimes I feel almost closterphobic. I feel stressed out and I cant think properly. I'm just so not used to it, so not used to being able to be myself completely. i feel like I'm being judged sometimes, like i have to watch what I'm doing. I feel uncomfortable, and not at home. Like right now for example, my roommate ( who happens to be my brother), is having sex with his gf in the bathroom. The bathroom is right beside my room, their bedroom is in the basement. why do they have to be so dissrespecful and do it in the bathroom where I'm sure they know I can here them...why not go to their room? it just makes it even more uncomfortable.
I'm craving to live on my own again, to have my own space, to feel at home. I miss being able to be myself and be weird if I wanna be weird. I just wanna be free and have no one else to worry about