You only have to decide once
(then commit.)
Vegans, as Seth has wisely pointed out, don’t have a discussion with themselves everyday about whether or not they want to eat a hamburger.
And professional writers (and bloggers and vloggers) rarely have to decide if they’re going to publish something today, or tomorrow.
So how are the things you want to inculcate any different?
You likely made time today to go to work. To eat lunch. Or to shower. So how is breaking a sweat, reading a book, or working on your side-hustle any different?
If it’s that important to you, everything else can wait.