It goes up and down yeah but it never gets any better. It’s worse the older you get and you realize that there never was much hope. The most you can get is short periods of near fluency but it always ends. The older you get, the more embarrassing. It’s a miserable life rife with anxiety and deep depression and you’re invisible and then you realize other people have worse problems which is true but yours is still mocked. I recommend getting into books and movies and shows and games and losing yourself in this while working a job that doesn’t require talking which is low wage more often than not. I’m down myself as you can tell. It never gets better. You never become immune to the embarrassment, frustration, humiliation. Death is certain so don’t kill yourself but yeah it’s not a great life with a severe stutter.