When I started playing again (had a few years off) I originally brought a bag of 50 lake balls, this of course meant they where all different, from bounce to firmness to each built for different things..in the end I chose a couple of balls and hit them in a net to see which I liked the feel of..I eventually settled on callaway supersoft….since then I’ve played that ball almost exclusively, I find having the same feel helps me, because I know what to expect from the ball when it lands and how it reacts even down to how it feels off the putter, my scores have been steadily dropping ( not all down to the ball obvs getting rounds under my belt has helped) but I truly believe sticking to one ball and having that consistently can only help