TheKeyBladeMaster

I started off playing in the grid, (with sora) i got up to the fight with Rinzler an noticed i couldnt beat him because 1) my level was too low (lvl 13) And 2) i didnt have counter rush! I tried to o back and get it and i couldnt! What do i do?!?!?! I dont want to fight him without it I am also stuck with riku with the big round dream eater i feel like such a noob