How do you have a shower if you don`t want to wash your hair or get it wet?
Most of all, how do you wash your entire face without getting your hair wet?
What I do is take a winter cap, tie my hair with several bands and tuck it under the cap?
When I wash my face, I pull my hair up my hair and tie it. So I leave it dry.
wash my face - same as you.
shower - tie my hair in a knot, then wrap a towel around it. (I used to use a shower cap, but prefer a towel).
I tail it way on top of my head, twist a band around it once, then fold the hair over and do one more band twist. That keeps it up while I shower carefully (keeping water on shoulders or below). Face gets washed with soapy cloth and rinsed after the cloth has been wrung out and resaturated. Works fine!