I think oceanx's response is just mean and hostile, I must say.
But the truth is you like younger girls and that's what you're afraid of.
Not saying it is easy. But just go up to a girl and say "You know I like you. Right.?" without as much as a question mark, really.
Just risk the embarassment. Just tell them, one, two, three, what is so.
The plain and simple truth. That .. you .. like .. a .. girl.
Just tell her that you like her and see what happens.
I just remember one time when I took the advice of the PUAS and just told some girl in a store that she was hot or something like that. She laughed or smirked disdainfully at me. And it was not really embarrassing. And I know her respect of me was gained. Yes she laughed at me in the sense of "like, you???". And it was NOT embarassing. Just go up to some girl or even just walk past her, some girl that you think is out of your league and say something like that to her.
You lose nothing by saying it except a moment that would otherwise be wasted.
Say it especially to the girls who seem out of your league. It doesn't mean much then (to you) (cause you don't really like the girl all that much) and it still rids you of shame. Next time you do it, you will laugh about it more. And eventually the outofyourleaguegirls don't scare you anymore, you know they're just something. Average. In a sense.
I'm just terribly annoyed by the fact that I care so much about each individual girl and then I screw up as much also. And that I then want to fix the relationship with that one girl. Or all of them really. Like you could say they are a caroussel in my mind

. In a way. Not that stringent.
But risk just saying what is true. The simple things. The really simple things. And see what happens. Maybe you're "found out". Maybe it will be a nice feeling.