What to do when you feel rejected by the opposite sex?

What to do when every girl throughout my life has rejected/ghosted/disappointed/wasted my time. I just graduated college and a girl has literally never treated me well in my opinion. I am in such emotional pain right now. I just feel like every girl hates me or is against me (I'm talking in terms of dating me). I am shy and girls have only hurt me throughout my entire life. No girl has done different. I have never had a girlfriend because either the girl isn't worth my time (aka I don't like her enough I guess) or I am ultimately rejected. I have never had a real girlfriend. I just want to know what it feels like to not be rejected. I've never felt that... I feel completely rejected by the opposite sex and it feels terrible. I am attractive, brilliant, and could not think more highly of myself but feel completely rejected by the opposite sex. I feel horrible but as Steve Jobs said: "Don't let the noise of others' opinions drown out your own inner voice."... And my inner voice has always told me that I don't care or need female validation because I'm the most attractive + the best guy in the world (in my opinion). I know all females are different. But I so badly need a girl in my life because I feel rejected by the opposite sex. Would so love to hear a girl's thoughts about a guy who sadly feels this way. Especially because I feel like a girl who I let into my life would never suspect this underlying pain since I'm attractive and drawing more attention now. In college and high school, I kind of just did my own thing and or focused on my studies/interests + GPA. In both, I never really fit into any of the cliques. I just feel rejected these days by my generation of girls because no girl has ever proven me wrong.
What to do when you feel rejected by the opposite sex?
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