Over the long run, I think the single best thing that you can do to improve your game is maintaining your strong will and desire to improve. Even if you practice 24/7 and you are coached by instructors, if you don't keep the fire burning and if you aren't having fun, you will likely not improve. I'm not just saying this. The longer and better you play, the harder it is to improve and I have seen this put a damper on many good player's progress.
As for something you can physically do right now...I haven't seen your game, but most likely, at the C+ level your shape is the biggest element of your game that can improve so work on that. Get used to playing for better angles and fine tune your speed control as much as possible.
As for something you can physically do right now...I haven't seen your game, but most likely, at the C+ level your shape is the biggest element of your game that can improve so work on that. Get used to playing for better angles and fine tune your speed control as much as possible.