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It's often a battle between muscle memory and willpower. It's easy to do something once when you focus on it, but doing it long enough for muscle memory to change is the tough part. That's why I've sometimes used physical objects to achieve something, where the object force me to do what I aim to do, without having to think about it and use willpower all the time. Humans are very good at programming ourselves and creating habits, but it takes time to change that programming.

What about hand path?

This reminds me, I'm not a retired geotechnical engineer.  My new career as volunteer golf rules official typically pays me a ham sandwich and a soft drink, but its more fun.  

Getting there 😛 

You're WAY too young!  You should have to wait until you can only hit your driver 280.