You are never too old to learn. Pick up tips from other hunters.
Don’t leave the blind too early. Pack a lunch. What forces hunters out of their blinds more than anything is hunger.
Don’t hesitate to experiment on your own, even if the idea seems silly.
Make sure you pattern your shotgun. Most people have no clue about what shot size shoots best in their shotgun. It’s also unbelievable how many modern European guns are not true to point-of-aim.
Shoot improved cylinder chokes with larger shot sizes as they tend to shoot tighter patterns.
If you haven’t mastered a duck call, minimize your calling. Gray duck calls and wigeon whistles are easiest to use.