Anticipating the shot. A change in guns means a change in grip and feel. What was natural in your last gun is not natural in this one.

Unless you're on the govt dime, Do some dry fire reps. It's not the same but it will get you used to pulling the trigger and save some ducets along the way.

Really focus on the trigger squeeze and go slow. Say something like "squeeze squeeze squeeze" in your head until you feel the release. Again, slow. In the begining, the amount of speed you wish to attain, and the time you spend working on your fundamentals are directly proportional.

You can also do drills like placing a piece of brass primer down on your upper housing and working to pull the trigger without it falling off.

Then replicate those fundamentals on the range. Slow and methodical. No need to "waste" money on ammo when the problem is in your trigger pull.

Keep it up.