Patience will kill you more turkeys than anything. If you can just setup where you know the birds will be, a clearing or field you are seeing them on, roads you see strut sign in, etc. That's all you have to do to kill a turkey. I am a huge believer in light calling. I don't call alot. I usually wait at least 30 minutes between some light calling sequences. When he does respond to your calling, he is letting you know that he knows you are there. 9 times out of 10, he will come check it out. It might be right away, it might be 3 hours from then, but he will come, he's thinking with his pecker this time of year. I have also quit trying to get a shock gobble at daylight, I let the woods wake up on their own, no need to force things and let others hunters know where you are. He'll gobble when he's ready. Be patient, a lot of hunters get up and move having not heard a gobble, but in reality, one has been easing their way the entire time, just being quiet. There are a lot of reasons a bird may not gobble so if they don't, don't let it discourage you. If there are a ton of hens around, a bird doesn't have much reason to gobble. If there are a ton or predators around, birds learn not to gobble as much. A lot of your younger birds usually will not gobble if there is another sho'nuff dominant bird around. They don't want their butt kicked. A dominant bird may not gobble either, I've seen groups of jakes beat up on one. I've killed a lot of birds mid morning and a lot in the afternoons. I am a true believer that if you can get a bird to gobble to you in the afternoon while on the ground, he is more than likely gonna die.
Just get you a good little slate call and get good with it, just some clucks, yelps, purring. the mouth call will come with time. I always have a mouth call in. Its nice to have when you feel the bird is getting in range but you don't know exactly where he is yet and want ready being down on the gun. I'll usually yelp a little if I feel is is having a hard time finding me but when I know he has seen the decoy, I stop calling all together.
Of course, I am speaking of my experience with easterns in Ga so maybe some of this will help and some will not.
Here's a bird I killed one afternoon a few years ago. Sat down by a tree at 1:40pm, bird came in at 4pm, never gobbled, saw the decoy and that was the end of that. Never heard a bird gobble that entire afternoon. long boring sit but worth it for that few moments of fun.