Help me get a chance to get into the Military.

I was DQ from enlisting in the Army 3 years ago because of a really small heart murmur. I've never had a problem with it and it has never bothered me due to being active and playing sports. I was rudely told by a doctor that he didnt think I could do a "100 mile ruck march" and i know that they dont do that in basic training. I was wrongfully DQ'd and I want another shot and a fair chance to be able to enlist into the military. It is a dream to serve and it would mean so much to me to be able to serve. Please help me serve our country!