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If I were you I would get up and walk out in the middle of my decoys like I'm picking up.Works every time.
Birds like to land into the wind. The wind should be at your back. If your blind was was facing east with an east wind than it would have been in your face. I always try to avoid that.
Great topic. I would suggest getting help in person. The WWA has a mentor program that pairs new hunters with experienced waterfowlers for a minimum 2 hunt commitment. Its a steep learning curve and experienced hunters will help bring up your success with new skills.
Being on the X is obviously the best way to get them, but unrealistic for public hunting at times. Besides what others mentioned, get some different species in your decoys, gadwall, wigeon, coots, or other divers. It gives confidence to them and not many hunters run more than species or two of decoys. Standing out can often be best, especially late season.