Your process sounds fine; you just gotta do it more. When I first got my Keos (I already had been using SPDs), I spent a weekend in a parking lot doing nothing but clipping out, stopping, and clipping back in.
You also need to relax. You tend to overthink things--by your own admission--so while you're practicing, try to keep your body loose and breathe deeply.
Live with intention. Walk to the edge. Listen hard. Practice wellness. Play with abandon. Laugh. Choose with no regret. Continue to learn. Appreciate your friends. Do what you love. Live as if this is all there is.
--Mary Anne Radmacher