Losing balance rapes distance, accuracy and consistency. Your torso stops in place and your gummy legs move forward just watch you knees. You need to brace tightly with the right leg calf and thigh muscles to avoid the increasing of the knee angle. Also you need to push fast ahead with the left leg so that the left knee is straight at the rip.
While the hop up will translate to more power once the legs work properly it makes it more difficult to throw consistently even when you're fresh let alone when you're tired. You had so much speed that you became uncoordinated so the regular form drilling advice of slowing down the steps applies. Check the toe pointing directions in the x and plant steps. At the moment you can't reach back as far as needed for maximum golf power or even maximum control throw power because you can't turn the back at the target. Try heels pointed at the target for the x and plant step. Yeah that too messes up balance coordination etc. but at a slow speed it can be done and eventually you'll learn full speed too but it can take months of field practice. It did for me. So it ain't the first priority. First you need to learn to walk before you can run.
You don't twist the hips to the right of neutral of turn the shoulders even farther right than the hips before the rip. That loses a lot of power generation.
Flat shots need running on the center line of the tee and planting each step on the center line. Anhyzer needs running from rear right to front left with the plant step hitting the ground to the left of the line you're running on. Hyzer is the mirror of that.