What is happening?!?!

oh man i don't know whats wrong with me someone please tell me? I've cried myself to sleep every night. Maybe it's becuase no one understands me, maybe its becuase everyone tells me how bueatiful my best friends is and how plain i am, maybe it's because i know it is true, maybe its because i can't enjoy life becuase i'm scared of failure, maybe it's because the happiest i am all week is when im watching Gilmore Girls, maybe its because i don't know who i am or what i am, or maybe just maybe its because i have to front like i am happy and listen to everyone elses problems while i pretend i don't have my own? MAYBE