Why do I have trouble getting fired up when I'm trying to athletically perform?

I am a college pitcher and have a lot of potential to go further with my career in baseball. It seems like recently I haven't been zoned into the game. Just this summer I pitched in a collegiate league championship game and it seemed like I lacked mental "hypedness" for the game. I was relaxed the entire time I was pitching. Dont get me wrong I try to give as much effort and focus as possible while I am pitching but it just seems like I mentally am not there. Any suggestions on how to me resolve this?