Revolve around the question: Why am I not painting? What’s keeping me from painting?
Often, for me, it's the fact I don't have canvases ready and waiting. It's the fact that the supplies aren't there, ready for me to come do something with them.
Writing is different.
The moment inspiration strikes I speak an idea into my phone, or jot it down on paper.
Whatever your craft, do the work ahead of time to make it as easy as possible to dive in when the voice inside you shouts, "JUMP!"