You didn't mention having any decoys. You ought to get a dozen decoys -- probably mallards -- and put weights on them. They can be cheap, dirt cheap. Decoys without a call will do you more good than a call without decoys. If you have both, that is better still. Call less rather than more. Be mindful that those DVDs on duck calls typically are more interested in selling duck calls than helping you to call in ducks. You don't have to call perfectly, and even if you call perfectly you won't always call in ducks. Having some motion in your decoy spread can be helpful. This can be done in a variety of ways, such as those vibrating floating "hockey puck" looking contraptions. On very clear well lit days, it is going to be hard to bring the ducks in. On foggy, hazy days the ducks are more likely to come in. You might consider hunting on small waters -- ponds, creeks -- in addition to lakes. Have a plan for how you will retrieve your fallen ducks. You didn't say if you had a boat or not. If you don't have a boat, you probably need some waders to wade out to retrieve your ducks. Figure out how deep the water is before you shoot ducks over that same water. Hunting on ponds or sloughs or marshes can overcome this problem. Be advised that wading in water can be dangerous. You can fall over and have your waders flooded and then they act as an anchor holding you down, maybe dragging you under the water if it is over your head this can be a problem. It might be preferable to hunt with others to be safe, particularly when hunting an unfamiliar location.