I consider a mindset a technique, it may not be saying words or sounds or what ever a certain way but it can be just as potent, more so honestly. So the idea of reducing it, I believe doesn't need to be in your mind or worry. You can think of the instances that bring about the conditions for stuttering as just another chore rather than a unique scary experience. When I say conditions I mean things like ordering out, the phone, introducing yourself, etc. You don't need to think of these as meaningful that important things, you can see it as 1 in countless countless more and see it more like a chore. Yes, like vacuuming, lol. Take away that hold these events have on your conscious. There's no need to dwell on it or even think twice over it. Stutter freely if so but no need to even dwell on it and consider stuttering. If it happens it happens. You can still smile and be yourself. This is how I am with sales honestly. If I stutter through something, I don't even think twice about it. I'm still smiling, continue on like it didn't happen because I'm very comfortable in my own shoes with clients. I am still calm, collected, smiling, and comforting. The mindset can be it's own technique and the biggest irony is the less we dwell over it, the easier it is so you can give yourself that much needed break. It shouldn't feel like it's gotten worse because you should not be keeping track of it!