Sorry to hear about your injury.
Take a lot of care!
Foot injuries are nasty becasue your feet take a lot of load and weight even doing the most normal things.
I really recommend going strapless for a while and do so with a surfboard.
You need to do this for several reasons.
First of all you will put less load on your feet because you don't need as much power to ride a surfboard.
Second because you will be able to move your feet around so you won't be soliciting the same areas od your feet.
Third becasue riding surfboards is great.
If you can get your hands on an Aviso.
These are hollow carbon fiber boards so the deck and hull have some flex. This will smooth things out and absorbe chop so your feet don't have to do it.
Put nice thick NSI pads on the board.
Look at things from a positive point of view.... the accident will get you onto directionals and skim boards...
Get well soon.
Don't abuse that injured foot. Yoyu could end up paying for it dearly when you are older......
remeber you love kitesurfing so you will whant to do it when you are 70