Hey there Terry,
You are not alone I am sure! Here is just a little advice to try. The distances may vary slightly depending on the irons or wedges you use and the wind, and full backspin or forward spin that you apply to the shot.
These suggestions apply to Full Shots :Lets say you are 108 yds out from the pin in the rough and it is 30%-40% depth. I usually figure adding 10-12 yds to this shot with full backspin. 40%-50% depth I will add 15-18 yds. On a 15%-20% 3-5 yds added and 20%-25% 5-7 yds. These are rough estimates and making a note on your pc monitor with a post it note under the shot gauge will be your best way to develop consistency. Try a certain strength shot with a particular wedge and distance, hold the shot at the top of your swing and make a mark on your note. Then execute the shot and write on your note the yardage results. The secret is it takes some work to find out what your distances are with the equipment you are using, but the good news is it is possible to get very consistent, even from the rough.
Feel free to message me if you are interested in further assistance as I am a club owner/ trainer. I would be glad to be of assistance where i can.
Beeray