The two main changes for me are:
I gained more awareness, i.e. I started better noticing my thoughts, emotions, what I am doing, what is around me, other people’s emotions. I became better focused. I started to often catch myself understanding that I’m thinking of something useless or that I’m doing something useless, that I should change what I’m doing or focus or more effectively do what I’m doing. That gives me more chances to change my behavior, actions, to make more conscious choices.
As an effect of the previous point, I started to better control my emotions. I started often catching myself in the moments of appearing or increasing anger, sadness, worrying. And when I catch myself having bad emotions early, it’s easier to control them. For example, if I catch anger early I may stop and think: “Why am I having this anger? Is there a solid reason to be so angry? What can I do to improve the situation? What will be the best action now?”. After that I usually stop my anger, maybe understand there is no real reason to be angry, or change the direction of the conversation (if I get angry in the middle of a conversation) to make it kinder and more constructive, to make participants better understand each other, etc.