“Progressive practices” help in reprogramming your brain to bury bad habits and form new neural pathways in your brain. The key is to use training aids that hep you isolate the component parts of the stroke to focus on one single action. Do this drill with flippers on and you’ll get a better “feel” for the catch. Use a snorkel as well to further the body’s feel. TAKE YOUR TIME, and you will see massive improvements in a single session. You’re welcome.