No, its not too bad working as a HM while in the reserves while you are a RN. I did it for several years, it all depends on what your goals are. As far as having to wait until your contract is up that is a command decision since they can give you a conditional release for your commission. I had several years left on my contract when I applied for my commission and there were no issues with my command. I even switched services.
By reading the orginal post again are you going to have your ADN or BSN in the spring? If its your BSN, diffently wait and then apply for your commission. If its your ADN you will have to decied which route you want to take.