I already answered this question in your other post but I'll reiterate and expand here. My speech was pretty fucking bad as a child and a teenager. People like yourself are always surprised that I've been able to improve the way that I have. So much so they'll assume my stutter was minor to begin with (as you've suggested, which is far from the truth). Without factoring in that it took a lot of tenacity, hard work, experimentation, and patience for me to get to where I am now. Which is what I share on a regular basis on here and my YouTube channel.