what if confidence didn't need to mean keeping yourself safe, but keeping yourself fluid, and alive, and creative? isn't that also confidence of a different kind?

You hit the nail right there! The good thing is that by moving around, in whatever way or form, or even intensity, we usually feel better.more posiitve. Such feelings build anything, well, almost anything, including confidence in many ways. And I am sure when feeling good, one will also feel better - or even good - about our physical appearance.

Keep going and you will find the spot you like to be in.