Nah man, the best years of your life are late 20's to late 30's. You'll have a job, money and a place of your own and women will be much more interested in you. Really one of the reasons guys in their early 20's can't find any women is because all the women that age are dating someone much older than them.
I don't know, OP. I don't think you can go out of your way to make something like that happen.
It's really hit-or-miss. For my part, I LOVE being in love. It might be my favorite thing in the world. But it only happens very rarely, and it's not my style to go out chasing skirts. Usually a girl will just fall into my lap once in a while.