Could I get involved in bigger/better stuff if I start out in a Pittsburgh agency?

I know there's more to it than just getting involved. But I think I have a unique look to me and talents that no other actor has. I'm not gonna go in depth because it's a long list but...

Okay so I've been think a lot i'm a crazy 17 year old girl who might not make it far into the kpop business but I want to give it a try. Yes yes I've heard all the things about kpop, slave-contracts, rarely no sleep, might have to lose weight, make up MAKE UP, but the sad thing about it is that I do not care.... but anyways for auditions i'm thinking about auditioning to YG and i'm wondering if you have to freestyle dance or you can do the chero from the dances because I suck at making dances so HELP.

I need ideas for characters?

I'm a roleplayer, I'm running out of ideas for my personalities, hairstyles, and clothing for my characters. Is there any websites or books that'll help?

I don't think that would be weird. The main requirement is that you're able to portray a "cool" American high school boy. Fortunately, nowadays, "American" is a pretty broad category. Ethnicity doesn't really play a part in this particular show, except in the movie where they had to add a little backstory to explain away Olivia Newton John's Australian accent.