Back Pain Tips

In September, I broke my left femur. I ended up getting a femoral nail, and have started walking again in the last two weeks. I will be competing in the AAU Nationals in Florida this year, in July, and will need some help getting my speed back up to snuff. I am 32, and in the 18-34 year old Advanced group. I am biking and doing as much work in the pool as possible to build up strength, but I am more concerned about timing. I can still axe kick with the leg, and have reluctantly did some paddle drills without any real issues. Pivoting is a bit of a problem though. Anyone have any advice? Besides hanging it up, that is. I wrecked my back in a car accident, and that didn’t stop me either. I’d appreciate any help I can get. Thanks!