Just in case you need anymore help....
Just remember when you are asking them out, be yourself, not someone you think you should be. Girls want to see what a guy truly is, and they probably won't date you if they think your fake. Also remember that if she says no, it's not the end of the world. You will most likely find another girl that is even better, and it's not the worse that can happen.
Sorry I'm bad at advice and stuffs :p