For me showering means standing in a windowless room staring at a blank wall for 20 minutes (I get lost in my thoughts). Also there are several steps and I have to think about each of them.
This means that I only end up showering when my fear of coming across as dirty becomes bigger than the dread of being bored.
What do you do?
You don’t need the shower running to shave.
Shampoo hair quickly, then leave conditioner in while you wash. Rinse conditioner at the end.
If you need to detangle hair use a wide comb, to to it faster. If it still takes too long, soak hair add a little conditioner then turn off the shower to detangle.