First off...welcome back. Secondly, I quit for 26 years and started playing again a few years ago. The smartest thing I did when I started back up was took a lesson from a qualified instructor. I did not want to start with any bad habits and believe me after the first 5 minutes of the instructor watching me shoot she pointed them out and showed me how to correct them as well as suggested specific drills to stay on course.
Just my humble opinion based on recent experience
The instructor was Karen Corr
Wedge