I truly sorry for your complications and facial issues,, it does suck,,, but I hope you see good recovery soon. It does take great patience when you have issues,, something I had to develop!
In my case, I had my facial nerve severed in surgery due to the tumor growing through it as I was told,,, it could not be saved. So I had a nerve graft 4 days later in order to attempt to recover some movement and muscle tone. It was successful.
If your nerve was not severed, perhaps your recovery will be sooner and more thorough,,
As to why some have complications and others don’t,,, I’d say, in my opinion,, it is due to the “ nature of the beast”,,,,, these tumors are different in many ways for each of us. Location, size, “ stickiness”, cystic, etc etc,,,
It is hard for sure to deal daily with the eye issues etc,, but try to stay positive,, develop patience,, and realize it will soon start to improve for you. ,,,
I have no magic words, Sorry,,,,, except I’m here for you !