A TERRIBLE way to determine what you need to practice would be to simply see what clubs you hit the most on the golf course.
For example lets say you hit a nice drive down a par 4 and you have 150 yards left. Next you hit which ever club and miss the green on the left side. From there you hit your approach shot to 12 feet and then 2 putt for bogey. What was the reason you walked away from that hole with a bogey?
IMO it was both of your approach shots, 1. you missed the green in regulation from 150 yards, 2. your pitch shot to 12 feet was not close enough because you can't "expect" to make the vast majority of your 12 foot putts.
You did hit your putter twice on this hole, proving that is not a good way to determine how to allocate your time to which ever club when practicing.