Someone help me word this correctly!

I love my family…but I spend every waking moment with the fam and its getting annoying. I mean…most peeps have some sort of a social life, but on friday night (just an example) I’m usually with the fam and almost always home early. Or I just sit home in my room. I’m never seen in public w/out some member of the fam hangin over me like a dead goose. And when I try to tell them that I need a little space, I get the whole “well, we drove you here so we’re going to stay” and more recently the all-too-famous “we love you and want to spend time with you, but I guess you dont want to spend time with us”…it’s just that its really embarassing having them hang over me. It chases people away (esp. Hot guys!*) but the real problem is…how do I tell them?! I’ve tried just about every way, like “look, I love you guys and that’ll never change. But I spend a lot of time with you, and I need some me time too. Maybe if I look a little more approachable, people my own age will talk to me.” but I always get the guilt trip. How would you break it to them??