Thank you for the feedback and recommendations.

Weather has been the biggest issue in increasing the # of flight/week. I now typically book 2-3 flights / week, but 1-2/week get cancelled due to poor weather. A full time job means I cannot jump into a plane as soon as the skies are clear.

It seems like a good approach would be to try and get a custom finish-up plan for my PPL with one of the "pilot mills" you are suggesting. American Flyers seems to offer such option, while others to MALB's point only have add-ons.
Do you guys have any recommendations?

Until I am able to take a week off to go to a "pilot mill" it might make sense to continue my current training, to at least maintain my skills.

On the topic of skills, it feels that a lot of my instructor feedback boils down to "It's not good enough, you need to practice more" which while it might be true does no point to specific ways to address my shortcomings.
Do you have any suggestions for a more targeted and focused training?

Thanks again for your advice