Pink suggests that you get unstuck by “going oblique.” In the 1970’s, Producer Brian Eno and artist Peter Schmidt created a deck of cards that contained strategies to overcome stress and being “stuck” creatively. They called it “Oblique Strategies.”
You can purchase this deck of cards for $500 or used ones for $65 or you can get some great examples for free, here.
I think the bottom line is to “jolt” you out of your rut.
Maybe a deck of cards containing oblique strategies doesn’t do much for you.
For me, visiting an art gallery or going to a live music event will inspire me to “break the walls” to creativity. Perhaps reading the biography of someone you admire will do it for you, or maybe a weekend trip to a cabin with no technology.
It will be different for everyone. Just make sure it’s in your arsenal of tools for work.