crush or love?

how can you say if you just have a crush on someone or you love someone? how can you identify that feeling is it normal to have a crush for almost 11 yrs.? because that feelings for me are so confusing sometime i think maybe what i feel with that person is a crush but sometime i feel like it's not why? because sometime i think of that person in my future hoping that i can be with that person someday wishing that person will like me or have feeling for me too.