No shame. I hope you enjoy it. You'll want the Extra Full choke for turkey hunting. You want to get them pretty close and shoot a tight, thick pattern at the head and neck. Your aiming point is usually around where the feathers stop and the caruncles (red bumpy, non-feathered part) begins. Some shot goes to the head, some to the neck and you have a flopping turkey!
To dress one, just put him breast side up, feel down to where the breast bone ends (it goes lower than you think it would) and cut down to the vent (anus). Reach in and pull out the innards.
Get on YouTube and listen to some turkey calling and practice some at it. Pay particular attention to the rhythm and cadence of the calling.
Turkeys have great eyesight, it is their principle way of not being eaten each day! Full camo, including gloves and facemask, helps, staying still helps more.
Check out some hunting videos to kind of see how it goes.
Turkey hunting is a blast, don't be afraid to get up and move if it's quiet.
Oh yeh, know how far your gun's effective range is before you go to the woods with it. Shoot some paper and see what your maximum effective range is.
Good hunting!