Almost 20 and ive never actually talked to guys before

At the beginning of this year, i broke up with my first boyfriend of almost 5 years, and I've recently come to the realization that i actually don't know how to communicate with guys, or like flirt or anything. I don't think I've ever genuinely flirted with anyone. I'm not sure if my ex counts cuz it wasn't serious flirting or anything, given we were already together. Whatever, anyways, my ex was like my first genuine crush ever, and we were together for literally my entire high school career, started the whole summer before freshman year actually. And then like half a year after i graduated. So that entire time he was genuinely the only male thing i ever spoke to and the only one that ever spoke to me, (not counting the boys that used to lowkey bully me) and that means i have little to no experience in interacting with guys, especially guys my age now. I mean i was 14 when we started dating. That was easy peasy lemon squeezy. But now, everyone is in their 20s. That's grown ass men. I DONT KNOW HOW TO SPEAK TO MEN???? Especially as a whole hearted misandrist.. I cannot comfortably speak to a man without a constant hinge of disgust... How on earth will i ever get back into the dating scene? I feel so strongly 15 years old at best. The average man does not care about my mlp obsession or my toy collection or the fact i like making dresses and drawing.... Now don't get me wrong, I'm not itching to jump back into the dating pool for a good while, I've got other plans for the time being. But when i do, I'm a bit worried that i will DROWN in that pool... i have 1 high school relationship of experience. I'm gonna die out there.