You had no bad habits. The problem is when you go a few times and start thinking.
I was a skeet junkie for about 5 years. Managed a 97 with a .410 once. Switched to sporting clays and competed for a number of years then worked for the club as a target setter and instructor.
I think we were using a load that made it easier for me.
Sounds like you were very good to accomplish that.
I’ll bet you’ve seen a lot of very poor gun handling
over the years.