My new Facebook makes me feel trapped?

[Eric]

I have been wanting a Facebook account for the past few weeks, and this evening I finally decided to get one. I never anticipated the terrible feelings I have received from it. Now I feel like my "friends" are always watching me, like my life is one big advertisement, and that I always have to think of how to "perform" for my friends on the next change to my page. I now realize how much I prided my "old fashioned", more private lifestyle. I felt free then, like there was a time to be with friends and a time where I was certain I could be alone. Now I feel like the two are inseparably merged and it makes me feel highly insecure and vulnerable. I can't even sleep right now, in part due to this problem. But I feel as if I may be jumping the gun by deleting my account so soon. I know that someone may tell me to "wait it out and see", but I can't stand to wait it out. I just want my life back. I also know that it's a little soon to be saying that, perhaps, but if this is how it's going to be from now on, then I really want to leave as soon as possible, before I accumulate more friends and hurt everyone's feelings. I also thought that since anybody who's anybody (at least my age) is on Facebook, that I would be left in the past if I didn't join. I'm now beginning to think differently about that, especially considering that less than half of the US population actually uses Facebook. Would it be okay for me to leave Facebook, or would it be too soon to make a good decision? How can I politely inform my friends of my decision?