"During my end-of-year review with my manager, I heard something that I had never heard before in my career. My manager commented that one of my strengths that she found was my presentation and speaking abilities while leading meetings. Let me rewrite this again since I'm having difficulty believing this myself. She said my strong point is my presentation abilities during the meetings I've been leading with managers and executives. Needless to say, I was a bit surprised. In a good way. But I need to give credit where credit is due. I'm basically writing to say "Thank you".
The more I think about it, the more I realize how much I've been integrating your teachings into my everyday work. I just wanted to write this to let you know how your membership has been helping me."