The obstacle is the way.
Ryan Holiday wrote a book on the concept.
You don’t have to read the book to be struck by the simplicity.
It applies — to everything. The obstacle is the way. Stuck in a project? The task you’re avoiding is probably the reason you’re stuck. Having problems with your girl? Talk with her about the subject you’re worried to talk with her about.
If you look, the principle is everywhere. The obstacle is the way. Learn to recognize it. Then solve that problem because that’s what’s holding you back.