im extremely sensitive and im tired of it

last year i was often bullied online. a group of friends would post pictures of me and call me ugly and make fun of the things that i did, and this all damaged me a lot and everytime i look in the mirror i try to convince myself im not ugly and when i find myself doing something that theyd find funny i quit. i try so hard to appear tough and unharmed from criticism but in reality it hurts me deeply and i dwell on it for months on end. i found out earlier that those people who bullied me are still talking about me and i feel like im experiencing it all over again. i hate having such a fragile ego and i wish i could actually be tough