My Mom and I been in a fight for a whole year about the marines?

You need to be straight up with your mom. The choice is hers! You seem to have already made up your mind and the fact is that you are an adult and can make those decisions for yourself. I don't think she should be acting that way, and support your decision no matter how much she disagrees. I'm a mother and would not like my son to be in the military, they sacrafice too much. But at the same time I am proud that my brother is in the Army and admire him for it. Tell your moms that you love her and respect her opinions but are an adult and it's up to you not her. Make peace with her, tell her that you love her and want to be close, but that she's making it extremely impossible. Best wishes to you.