I've been crying the whole summer . whenever i feel vulnerable, my eyes fill out?

i've been cryin since school ended, well i sometimes cried at school and i was suprised am not really am emotional person but as school was about to end whenever a teacher yelled at me or reprimanded me my eyes fill up then i have to get a bothroom p. after that i cry whenever i cant find anything to do. or whenever i feel like someone is ignoring me or sheneve i feel unloved which is pretty much most of the time. i have to stop this crying ****. i can go to school and crying whenever some ***** is mean to or something. do u have any idea what is wrong with me?