this is something that i really want to do. i am going to major in kenesiology so that i can be a fitness trainer.

It is not essential but I think it is a good idea.

a degree is certainly helpful depending on what you actually want to do in the field. you will definitely earn a lot more $ down the road with a degree as there are many certs that just aren't credible (such as any that can be obtained in several weeks).

no you dont i did a personal trainer/gym trainer course last year