Should i delete my facebook its depressing?

I hated highschool! I was a misfit and i only had like 8 friends!! Its been 10 years and i finally got a facebook a couple months ago and here we go again i see all them mean stuckup kids from school on facebook and they are still the same! They are still friends amongst each other i mean this is crazy! Noone requests to be my friend!! You would think people would grow up!! Well its depressing to me should i just delete it! Im a very nice person its just i dont want to relive the past.