Does the girl i have a crush on like me?

Hi when i was 13, ( I'm 14 right now) I liked this girl. And after researching on wiki how, (how to know if a girl likes you) I was almost certain she liked me. But, in the 7th grade an all I was nervous and didn't have the courage to ask her out. Now it may be too late. If you dont make a move you guys might stop talking like me and her. So check wiki how out and if she likes you ask her out.