Im in the national guard, im in the RSP program, i havent been to BCT or AIT. I want to get out, any advice?

Now i have to explain, im not trying to get out of serving my country or anything of the sort, i simply want to switch and join the US Marine Corp. I originally joined the NG to pay for private school tuition but shortly after joining my mother began having medical problem so i withdrew. Before i joined the NG all i wanted was to be was a Marine and still do, but i sacrificed that to stay in a good school. But now that im not attending private school and im back in public school, i want got out the guard and continue my aspiration to be a Marine. Ive tried talking to my RSP nco and to put it kindly he gets pissed at the thought. I personally dont see why there giving me so much flack im trying to leave the NG for ACTIVE DUTY MARINE CORP for crying out loud the goverments gonna get its time out of me just in a different brach. Any way well im trying get out with out doing somthing stupid and get a dishonorable discharge, so if you have any advice id be greatful. Semper Fi