It can be hard with duck feet. They are designed to be on water most of their lives. That really is not an option for everyone, so you are likely to have some issues.
Issues also just tend to all appear all at once. I have been dealing with a duck with a slipped tendon for close to 6 months now. I am working on a more permanent solution for her. Right now she has been indoors for almost 2 months to heal, because she won't rest. I also have a Pekin who is also having leg issues and will probably never be the same again. She also never molted this last year and has not stopped laying eggs. So my two disabled ducks are going to need long term solutions, looking like I will need build an outdoor covered pen for them. I also had the soft shelled egg layer. Plus, I have an older guinea pig who requires extra care because she can't clean herself properly any more. So we definitely all have our issues going on. You are honestly doing great and dealing with the issues handed to you. Are you going to be perfect, no. But as long as you do the best you can, which you do from what I can see, that is really all you can do.