i wish i was likable

why is it so hard for me to find friends. i have been so lonely for 6 years now. im a second year college student and i feel like im missing out. my boyfriend got invited to a party which is fine like good for him but like i feel left out. i know that it my problem and its not his fault i feel this way i just do. i want to have friends i want to go party but nobody invites me anywhere and i have no friends to invite anywhere. i try to be nice i try to find common interests i try to be interested but nobody wants to be friends with me. what is wrong with me? why doe nobody want to be around me? am i just the type of person to be without friends? it really sucks and i just want to be apart of something.