Yep, yep. You sound like a classic introvert. And yes, I've felt the same way. In fact, I feel that way right now. The only thing is, is that not only can I never get some peace and quiet to myself, I can't even sleep without there being noise...

Maybe they'll all decide to go out somewhere soon enough and you can have the house all to yourself. And don't be afraid to say 'no' and to tell them that what they want you to do doesn't interest you. Letting people pressure you into things will only make you feel bad in the end.