Yep, I used to do that all the time. The stutter is bad enough, but the psychological stuff is where damage to the individual occurs. The stutter doesn’t hurt you but the psychological response will, and it’s a natural response. Social isolation and ridicule is devastating. So lesson #1 is don’t treat others this way, so racism and sexism is out the door. All that said, how can you help yourself? You need to find a speech therapy approach that works for you. Each person is different do it might be different for you versus someone else. For me, HCRI (Hollins Communication) in Roanoke, VA, worked real well. It’s expensive, but they have scholarships. I did it more than 20 years ago. When I practice what they taught EVERY DAY, I can be pretty fluent. If I don’t? Well, I’m back on the tightrope (I am a moderate stutterer and can sometimes hide my condition, another curse, in a way). Some more severe stutterers did better than me coming out because they were wholly dependent on the techniques taught. I was jealous. Anyways, that’s all I have to offer. You’ll never be a naturally fluent speaker, but with work you can become fluent with a reasonable amount of work and attention. Find what works for you ASAP,