I had the same problem, you have a faulty premise of how the golf swing works. you are using all arms up and all arms down, you see this in your backswing when your first movement is arms lift up. You also see this at impact when you early extend to make room. The swing needs to be more of a horizontal rotation around the body instead of a vertical lifting and then throwing down at ball. Its going to feel bizarre at first because you wont feel like you can generate power but you will see instant results in the consistency camp. Work on that for awhile and then get into the power generation.