I fell down the rabbit hole of duck hunting a few years ago. Knowing what I know now, the best advice I can offer is to find a friend that knows how to hunt your area and has a dog.
Short of that, if you're already on the proverbial X, you might not need to worry about decoys or calling. Just build a good blind (or two or three) in the right spots, based on how the winds vary, and fire away. For tough retrieves (we have some quicksand type stuff at our place), try a painter's extension pole. We painted ours camo with Krylon Fusion and leave it by the blind. If you need or want decoys, Roger's is usually tough to beat (check Prairiewind too).
