Just do it

I spent about 6 rounds doing this: slip right, upper right, left to the body. 

Isaac was working with me on this in the ring, only when I do it I don't lean far enough to the left after the upper right (using the momentum to shift my weight) and then I don't sit down enough when throwing the left to the body. 

So I moved from the ring to the wall bag. Upper, left. Upper, left. Instead of sitting on the left, I'm still pushing forward straightening my right leg. Treating what should be a wide left to the body instead like a left hook. Isaac moves me to the mirror. 

I practice facing him. Slip, upper, left to the body. I'm not getting it. We work on the sitting... it's like you're sitting in a chair, not turning the foot like a hook. We practive while hovering above the bench to feel the sitting. Slip, upper right, left to the body. 

Extend the left arm on the body shot, it's wide, not a hook. Slip, upper right, left to the body. Shift to the left after throwing the upper. Slip, upper right, left to the body. 

I think I've got it. But I'm afraid I'll be thinking so much about doing this right when trying it in sparring tomorrow that I'll get hit with a hook to the head, just after the body shot. Oh, I can feel it already. 

Don't think, just do. Think, do. Just do, don't think. Don't think. Just do it. 

Wonder if the guys who came up with that slogan were boxers?