A huge part of my therapy (general, not speech) was literally accepting what is in my power to change and what is outside of my control. I can't control my fluency, but I can control how it affects me. I had to accept that a long time ago (prob 20 years ago atp) and it really set me free. I was lucky enough to be in the same class as a kid in the basketball team who was really popular and had a worse stutter than me. And he didn't go to speech therapy even though he could (it was free and very available at my schools). But he was so confident and people didn't care at all. Never even mentioned it. I literally can't think of a single time he was teased about it or a time I noticed him upset about a block. My dad's the same way. If you don't let it bother you then it doesn't matter. Simple as that. It can be everything and nothing - it's all perspective. It takes a while to trick your brain and unlearn some of the toxic shit, but it's very possible. I can happily say that I though I have worked on it a lot, I still have a slight stutter and it hasn't stopped me from doing anything. The only times it's been an issue were times I was too afraid to do something - but that doesn't happen anymore.