since you are so new to hunting, i think youre trying to run before you walk imho. Id definitely lose the e-caller and just get a grunt tube, although probably one of the deadliest calls out there would be to learn to master the fawn bleat.
Id stay clear of the thickets, you dont want to go in to a bucks bedroom and let him know youre around, he will clear out and youll never see him again
there are some awesome books out there on deer hunting, i cant recall the exact name of the one im thinking about, but it has to do with using topography to get you looking for the places bucks go and how they move (its got a picture of a map on the front cover).
Ive never really had much luck calling, i know it can work but it you are in the wrong spot you can call all day and you will never see a thing, better to learn how deer move and why, learn how to scout and set up a good stand, or how to still hunt.
welcome to the wonderful world of hunting, its awesome and i applaud your enthusiasm, good luck