Never been asked on a date

Samantha

and I'll be 18 in a month and I'm just feeling a little down. I've been asked online to be a girlfriend before which is all fine whatever and they weren't complete strangers, but I've never been asked out on a date in person. I mean obviously I'm not socially incompetent, I have girl friends and such, and idk I don't know what's wrong with me or other people. I've asked guys out before and have been on single dates before - nothing came of them - maybe I'm intimidating? IDK I'm just feeling a little inadequate. Any general tips to get a guy to ask you out?