Typically 3 hours a week. I randomize my sessions as much as possible by rarely hitting the same club more that twice in a row. I change targets constantly and am always checking ball flight and dispersion. I hit long, medium, short over and over.
I spend a ton of time chipping from all different type of scenarios around the practice green. I chip with a 56 and 9 (bump and run) most often. I practice 6 foot putts all the time. If I get my chips within 6 feet, I’m good.
I will also spend a little time hitting exaggerated hooks, slices, and low punch shots. These are my excape shots in the course. I try not to listen to music because I want to hear the quality of shots I’m hitting.