Hello zanjabil
Welcome to the forum!
The first issue with your foot collapsing is simply a function of strength. Keep persisting. One day you will have the strength to support your body over your foot. Other poses will strengthen your ankles (Awkward for example). So take that focus into different poses.
The pinkie toe thing: 😆 that has happened to me from time to time. I have tried to bring it back in and sometimes that works but really it is your body making an attempt to balance itself. BTW when that has happened, the more I have tried to fix it the harder it has become! Just notice it and move on. It is not incorrect to have your toes in that way, so my suggestion is to simply observe how your balance dynamics change the way your body looks and feels over time.
Namaste
Gabrielle 🙂
