I have gone from moderate to mild, and I will tell you what I know. I was a moderate stutterer in my 20s, and am now very mild in my 50s. This may or may not be helpful to your situation. But basically I used the techniques I learned, such as gentle onsets, breathing, etc. over the years to cope. As I got older, it also seemed that I just cared less. I have my own business, so there is not as much work stress to perform - I know where I am in life. Back when I worked for someone else, I felt more pressure to speak well in front of my peers, bosses, clients. In my experience, I found a very close correlation between anxiety and stuttering. So as my language skills improved and I found success, that kind of snowballed into much less anxiety. Also, it is quite possible that stuttering simply fades a bit as we get older. But I know a big part of it is just not caring so much anymore. I really don't care what anyone thinks of my speech. I can't help that I stutter sometimes. Anyway, I think the upshot is that success with some techniques plus getting comfortable in your own skin to reduce anxiety is what helped me. On a side note, if you want some inspiration, google xQc, the streamer on twitch. I think he is a little bit of a controversial figure due to some stuff he has said, but I recently learned about him and admire him purely because he has a not insignificant stutter and basically puts himself on stream for viewers daily. He is skilled at his game, and is talked about, but rarely in reference to his stutter. He just does not seem to let it limit him.