Bad Habits

I’m thinking of selling my Strom as I have developed a deadly habit which has only happened on this bike (I’ve had 5).
As I’m braking, I’m rolling the throttle!!!
I’ve read that many people do this and they focus extra hard on NOT doing it but I don’t want to have to focus so hard in order to stop my bike safely.
I love this bike and I bought it with absolutely everything I would ever need already installed or fitted.
To be honest, Shadow is so freaking heavy that with this extra issue, I’m scared to ride him.
I do ride my Ninja often and have no issues.
Any helpful advice?