Good luck! I recently decided to give up dairy as well. I had been suspecting that it was the source of some periodic energy issues (which always occurred after dairy consumption) and then my sister got back test results showing that her body was reacting to casein. I will miss you full fat yogurt, heavy cream, parmegiano and grass fed butter, but you're just not worth all the excess cortisol!
"You can demonstrate the purpose and limits of human digestion with a simple experiment: eat a steak with some whole corn kernels, and see what comes out the other end. It won’t be the steak."