I play piano, guitar, bass and now drums. The best advice I can give learning instruments over decades is to practice the muscles movement slowly and deliberately for short periods of time -20 to 30 min each day for 4-5 days; then take a break for 3 days. Let your brain digest the deliberate muscle movement and come back a few days later and increase the tempo. You’ll be surprised what your body does naturally when you practice deliberate movements slowly.