Suggested pitch

Right now i have a 75-78mph fastball but i when i get tired im really ineffective if i need to ill throw a 12-6 curve but it is very inconsistant and i dont want to mess up my arm. I need some new pitches or something.

Age?
Weight?
Height?

Ever try a change-up?

How old are you?
How big are your hands?

i would suggest the change… I never knew i throw it til like yesterday… lol

Definitely change-up.

And if you’re getting too tired, don’t hurt your team’s chances of winning if there are rested pitchers available.

im 15 about 6’ 1" and 180lbs and i have really big hands…
ill start working on a change