Just a suggestion....don't think of your stutter as a beast or something to tame. It is something you do and it is something you can learn to undo IMO. I have stuttered for 55 years, much less now than in younger years but I still stutter occasionally. I had lots of speech therapy in the 1970's and 80's in the UK, and the focus was always on the mechanics of speaking. No doubt these things do help but I realised as I aged that too much focus on the mechanics increased my anxiety and anticipation of stuttering. In other words I was over thinking it. Speaking to a group of people is a little bit like a performance and the more you do it (or anything speaking related for that matter) the better you'll get at it. You might have 'disasters' at first but so what, keep going. Consider joining a Toastmasters group, I joined 2 clubs last year in preparation for my father of the bride speech. This is exactly the type of situation where I felt that old familiar anxiety rise up again. I spoke as much as possible in the Toastmaster meetings and gave a couple of speeches before the wedding day. The result was an 8 minute wedding speech without notes and stutter free to 120 guests. Easy for me, right? No, all of the old feelings came back before I joined Toastmasters, they were still there as well, they just got a lot less. I worked my butt off preparing. I also used visualization techniques and I tried to keep a positive mindset at all times, anytime a negative thought about the speech popped into my head I would wipe it away like a windshield wiper wiping off rain and then replace it with a positive thought. Each night before sleep I would sit for a minute or two and imagine myself delivering the speech with confidence. Any particular letters or words I consistently had trouble with I would practice saying those words repeatedly with family and friends. If it's one thing I've learned over the years it's that repeated exposure to challenging speaking situations helps conquer the difficulty. The key word being 'repeated'. This is tough if you have a terrible experience the first time but it's essential to keep going. I hope this helps a bit.