You're getting lots of advice here, I can see where all of it is coming from, but to be frank I don't really understand your problem and I'm not sure about anybody else. I cant see any reason for centring rudder, you will require rudder input to remain aligned during the roll out (weather cock effect). Look at the far end of he runway (best advice you'll get about landing except on some water)
What you do really need is a coach, You'll never see a tennis pro or any sports pro for that matter without a coach. You are too close to the action to best see a way through. Find somebody with talent whom you trust to fly with you for a couple of hours round the circuit on the right day and let them pick the bones out of your actions. Prepare to be broken down and built up again. You may have some preconceptions which got you to where you are now but are stopping your progression.