You're always gonna be rusty from an injury or hiatus you just gotta build yourself back up slowly & don't get frustrated you can't do all your go-to's immediatly. Think if it as relearning how to skate, and polish up on all your basics until you build your confidence back up. It will take some time, but it'll come back eventually if you put forth the effort. Regular stretching, good eating, wearing supportive footwear, and physical therapy are all very important, and the more diligently you carry out those things over a long period of time, the better your chances are of recovery. I remember some interview with Jerry Hsu talking about how Reynolds would almost literally obsess over eating right, stretching, exercise, etc. and obviously you see the results of that. Most professional athletes have been through some type of injury/rehab experience and they face the same issues so sometimes reading about their stories can be encouraging.