I have a crush on 2 of my teachers, and  I don't see an issue with it.
Do you think you have a shot with them?
I'm not sure but I can tell they both look at me in a weird way sometimes.
While it's understandable to have fantasies, it's wildly inappropriate to actually act on them when they involve teacher and student relations.  You should not try and advance things any further or they could get in serious trouble.
I'm going to try anyway, they they don't consider themselves too old for me.
Fantasies are a normal part of life, but nothing good will ever come of being with one of your teachers, don't do it.