never good enough

I've been feeling very depressed every guy I talk to eventually stops talking to me all guys ever see me as is a toy I feel like I'll never be good enough to do anything .i still care for the guy I lose my virginity to but he just stopped talking to me because I'll bever be good enough for him.  And the guy I've been talking to now  I'm not good enough because clearly he still talks to other girls . I hate my life my job I'm going no where I just feel like no one understands have I feel. That no one would miss me if I was gone . They'd be better off with out me