Train side delts with lateral raises
Train rear delts with reverse flyes
Train overhead presses
Use progressive overload
Use proper form and full range of motion
Train shoulders 2 to 3 times per week
Include enough weekly shoulder volume
Strengthen upper back and traps
Keep body fat in a healthy range
Eat enough protein
Eat enough calories to support muscle growth
Sleep 7 to 9 hours per night
Improve posture
Avoid excessive focus on chest only
Be consistent over time