Im a 20 years female,i'm living a miserable life...i lost most of my friends because of my over sensitivity.?

my mother died since i was 2 years.now i live with my father,i hate him...he doesnt give me any kind of support,all what he does is embrace the feeling of fear in me,i cant do anything alone,i lack confidence in myself,im afraid of everyone and everything,i know few guys i my life,i've never been in a relationship before...i'm pretty and usually get all the attention but this is not enought to booste my self confidence,i dont have any fun in my life,whn i see people's pics on facebook ...how they travel together,hang out and have fun,i feel more down.i feel i want to die,or lock myself inside my room till i graduate from college,and earn a salary of my own ,perhaps this would help me become independent and cheerful specially that my dad doesnt give me a good financial support.i cry everyday! am i normal? any help?