My technique I use is ‘ok, let me find another way to say this’ and I’ll try different words to say my sentence. Sometimes I look so silly but it’s all I got. Getting a bit off topic but still might be relevant. I used to work in a hotel and had to tell people where the Canadian Pacific Store was. It was a nightmare for me to say, I could never get it right. So one day when someone asked me about an item my response was. ‘Oh we don’t stock that but the C-c-c-c...... well hmmm, there is a store around the corner, I have a stutter and I can’t pronounce it right now but it’s just around the corner, it’s called the Canadian Pacific Store, have a nice day’ Nailed it! Also, my positive outlook didn’t come until I was about 23.