Is it normal that I photoshop myself into pictures with cute guys to make ppl at my school think i have a life and other friends? Usually they are guys i know, I just dont have a pic of me with them. and i don't do it that often...maybe like once every four/five months.

Pretending to be someone you are not is never a good thing.
All that will happen in the end is regrets. You should try to build a real life for yourself and don't bother with what other people will think of you. You are young and you have plenty of time, don't waste it on doing things that don't mean anything.
Good luck!
They're allot of people that don't have much of a social life, but this is strange.
Why don't you go out with your friends and take actual photos with them?
Also, if you're photoshopping I hope you're good at it, because they have sites that show photoshop fails and I imagine that to be very embarrassing for you...
Specifically monkeys and orangutans.