Anybody here do the Landmark Forum, and if so, did it help your stuttering?

Anybody here do the Landmark Forum, and if so, did it help your stuttering? Hi guys, 25M here. Looking to doing the Landmark Forum. For those of you who don’t know what this is, it’s basically for what I understand a 3 Day intensive self-help seminar for overcoming limiting beliefs. To build confidence, strength, and direction in life and in our relationships. I believe that for many of us our stuttering is heightened largely by internal limiting beliefs and insecurities about who we are as a speaker and in relation to other people. So curious if this type of program would be beneficial for many people that stutter. Please drop your thoughts, or any testimonies of people you may know who took the Landmark Forum. Thanks