Get off of Facebook now. You are only looking at 1% of people's lives, which are the party pictures and the like--them at their most presentable and desirable for social status.
Facebook should be used as an electronic Rolodex to stay in touch with your friends, not as a hobby to itself. Not only will it give you the wrong ideas, but it's a colossal waste of time. I used to get in that trap a bit in college when I thought that I had nothing better to do, so to snap out of it, I made a rule for myself. I'd check Facebook once in the morning, and once before bed. If it's important, people can call me.