So long story short, I've recently decided to join the school wrestling team. I've basically never done sports prior to this (except a few months of infrequent kickboxing) and I want to know if I should be exercising outside of wrestling to help me get into shape enough so that I could last during practice. My school is d1 and I usually gas out halfway through practice, which is three hours long. Would doing extra work be helpful or detrimental to me at this point?