Been there. When I was younger, lots of girl found me attractive.
Problem is, many of them aren't being genuine. They just want to be with you to impress their other friends. Count them out, and you've filtered 90% of all girls.
Then there are those, who want to be with you, but simply think that they are not allowed to be in love with someone. Kinda shy, but mostly a false sense of pride/chastity. So annoying.
Then you are left with a bunch of fat girls, who got emotional problems. They are fine, mostly, but it takes a lot of strength to deal with them. Mostly due to their emotional problems.
Then there are the few, who are actually nice, ready to be in a relationship, and pretty.
These are mostly taken, and most of them tell you "sorry I can't, my boyfriend would get jealous", even though it's pretty clear they simply don't want to put in the effort to think this through.