First of all, your plate is full with your family obligations. Without examining you I cannot give you advice with certainty. But here are some thoughts I had after reading what you posted. Your ankles have probably become too lax or hypermobile. This may be due to improper immobilization after previous injuries. Based on your family needs, I would guess ankle stabilization surgery would be a tough decision. I would show you an AFO that incorporates a foot orthotic and ankle brace. The original is called a Richie brace. Most recently I have been using the DCO brace from Langer Labs. These are custom made braces, so don't assume you can buy these on the internet. They are infinitely better than the Aircast ankle brace, which I am not that fond of.
In summary, I suggest you see a podiatrist who is familiar with a Richie type brace and discuss this option and any others that might be suggested. Good luck.