Cant be myself??????????????? :(?

Hi, lol i was depressed last year.........and now i am not but i WORRY a lot...last year i had a lot of gf's but this year i have none......and not even 1 girl wants to talk to me? This brings my self-estem down a lot.....also when i see someone having "fun" or when i see other people listenign to that person i imeditley get jelouse and try to change my personality like theres.......when i was younger i was very confident...u could say something so mean to me and i woul dblow it off my chest.....but now u say ur weird and it will crash my whole day....im just wondering how do i stick with my personality and not try to change just to be liked...........im a guy...........7 th grade It just feels like i make myself sad.......feels like a trend?