Every session starts with the same question: which variable is currently limiting your performance?
Define the problem — not a swing fault, a performance problem.
Form a hypothesis — which part of your game is most likely limiting you right now.
Investigate — gather evidence before assuming anything.
Diagnose — is this a development problem (you don't yet have the ability) or an expression problem (you have it, but can't access it consistently)?
Match the intervention — to the actual cause, not a default.
Retest — improvement is an ongoing investigation, not a one-off fix.