Of course, everyone knows how to turn their bathroom taps on and off.
I’m getting used to American plumbing, which generally positions a second set of taps in the pipes hidden away under your bathroom sink, allowing a plumber to work on the upper taps without needing to turn the water off at the main (generally somewhere outside the house, or perhaps under the kitchen sink).
99% of the time you’ll only ever need to operate the taps on the sink itself. To be honest, few people even know how to turn the water off at the main. That’s something they leave to the plumber.
In a similar way, during the coming day there will be some things you can control, and it’s mostly wise to exert your powers in this regard.
There may be others, though, over which you’ll have no control, and with these perhaps it’s wisest to simply accept this?
Control what you can. Accept what you can’t.