Hey man! Def relatable, been having the same frustrations one of these days. I think there is a simple explanation for it tho. A MMA fighter can visualise a fight, they can visualise the person they are fighting, perhaps winning, the people etc. Doesn´t mean they won´t get frightened the moment they actually see real people with real reactions to stuff and the sound of the cage closing. Visualisation doesn´t always guarantee mental success, but there is a lot you can do to make your visualisations better. One thing that can help is to make your visualisations sharper and more specific. Don´tjust think ´´ Ill be fine if i stutter.´´ Visualise everything. How do you act, how you feel, the people around you, the environment, smells, the look of the other person etc. Secondly, I think you might be better off if you tried visualizing and controlling something else. You said you tried to control your feelings and acceptance regarding your visualisations about stutter. Like feeling fine after a 20-30 sec block. That is simply not possible to force. You cannot control feelings that come during the moment. I can tell myself ´´If I see my crush I will keep walking and not shift my attention at all´´ all day. The moment I see her I will get butterflies and be a puddle on the floor no matter what. (Just an example) Also, idk what your stutter progress and history is, but it´s a bit unrealistic to think you will feel fine after 20-30 seconds of stuttering. That is like a huge leap in mental improvement and takes some practising to get hardened in. How do you expect to be fine? I don´t think any person in this world would feel happy about that haha. So it´s okay! That being said, you can accept your feelings and apply helpful mentalities at the same time. You can tell yourself ´´It´s okay and normal that I feel anxious, tenseful or resentful about my stutter at this moment, but I will take my time regardless because I stutter and that is okay. ´´ You don´t have to feel the acceptance, you can just think it and act on that thought. The way you act has a very correlating effect on the way you feel. That is why voluntarily stuttering is so helpful because you´re basically communicating to yourself and other people that it is okay to stutter. Its already on the table so what else you have to hide? Def try it if you want! ​ I think there is one underlying reason that is the main cause of all of this though, Ill tell that when you reply otherwise this text would be too long looool