Even my mom thinks I'm lame

So I'm 18 and I'm about to head off to college, but I'm like really really inexperienced with anything relationship wise. I have never had sex, never been kissed, never had a boyfriend, never been on a date, never even held hands with a guy, and at this point it's kinda pathetic. It's definitely not for lack of trying. for reasons I don't know, guys are not interested in me. Like at all. I've been asked out 3 times, and every time I've been stood up. I really just want some dating experience this summer before I go to college, but it seems unlikely. The other day my mom and I got into a huge argument because she said I needed to get on birth control, and when I told her that it really wasn't necessary, she told me to "quit being so stuck up and have some sex already". I stung to hear that even my mom thinks I'm pathetic. All of this is really hurting my self esteem and I've sort of sunk into a depressive state. I really don't know how to attract guys and I need advice. I try to portray confidence and I think I'm funny sometimes. maybe I'm not super attractive, but that shouldn't completely inhibit my dating ability, right? ughhhh please just help me... I'll include a picture for refrence