sitting in class

im sitting in class right now and i really want to leave, im so done and sick of this place it starting to hurt,, a lot. ive lost a mass majority of my friends and anyone who i ever cared for, i feel as if im only going to school to make my parents proud of me but at the end of the day, they really just dont care, im building up so many emotions and feelings and becoming a dick towards everyone and i dont mean to but it just happens, i dont like being known as the rude and arrogant bitch, who has no feelings or remorse to anyone, anyways does anyone know what i can do to stop this madness and actually help my mental state?