Training for my black belt

Seven years ago, a friend told me about a hapkido class and invited me to join. The invitation fell at a good time, as a couple years before, I had attended a celebratory dinner and as martial artists gave testimonials, I realized that I wanted the support of a martial arts program. And so, I took my first lesson. I began with beggies (wrist techniques), moved to hoi jeon chigis, and tung chigis. I struggle "Move your other left foot! How can you move that direction? Your feet are all twisted up!" I practice rarely only motivated if I'm competing in a tournament. I need to change however. On Monday, I was invited to train for my black belt and to test on October 20, 2014. I need to work on flexibility, stamina, practice techniques, eat properly, attend all my classes. I have six months to reach my goal.