How can a 23 year old virgin learn to attract girls?

I’m 23 and my last girlfriend was in highschool i had never had sex or even seen a girl naked irl. I go out to a bar or a place with many pretty girls, but I can't take any action, I just drift around until I leave, without interacting with anyone How can someone like me build confidence and courage to take action? Talking to a strange girl is the hardest thing, attracting them seems impossible.

How can a 23 year old virgin learn to attract girls?
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