Go run a mile, do 100 situps, 100 pushups and then empty a mag as fast as you can while aiming at center mass
Practicing fine motor skills like pulling a trigger straight back while your body is under extreme physical stress is the closest thing to a life or death situation. Best training out there
This. In the agency I work for, we always integrate pt into our tactical training. If you get your heart rate up, it simulates the fine motor issues that you will experience under stress. Getting in better shape in general will give you a serious advantage should you ever get in a real life and death fight.
Draw to fire reps are a good idea as well. Make sure the range you are at allows holster work. Start at home with an unloaded weapon.
Go through scenarios in your mind as you are moving through your day. “What would I do if?” Is a great training tool.