I'm also slowly reducing throttle from the downwind, through base and final, which is what you should be doing. You want to control your descent rate with throttle, not elevator.
Exactly...and get used to using your rudder. It will make your turns so much smoother, and your approach much straighter. AND when using it becomes second nature to you, you will no doubt enjoy, and be better equipped to fly all types of "scale" aircraft. It sounds like you are on the right track...good luck!