1️⃣ count out loud - if you don't count out loud or use the metronome, your rhythm is probably off. 2️⃣ loop problem areas - don't play the entire piece from front to back and call that practice. Play and repeat the problem areas, one bar at a time, repeat until you play them correctly. 3️⃣ Play the perfection game. You must play 5 in a row correctly before you allow yourself to increase speed or move forward. Be strict. If you screw up 1 time, you must reset to 0. The more strict you are, the higher your standard of quality, the better you'll sound.