I also recently started doing desensitization exercises. I have a speech technique where I talk slower and on the exhale with more intonation than my normaal speech. This really helps me control my stutter as well as putting in a 'deliberate stutter' here and there. For example. If I know I will stutter on the 'sa' in sandwich then I deliberatly stutter like this : 'sa - sa - sa - sandwich'. My goal is not to stop stuttering but to have control over it. I recently started using these techniques in real life when ordering food or asking something to people on the Street and started filming the interactions with my phone. This really helps me evaluating how I can improve and it's Just nice to see your development over the weeks.