I’m a firefighter and I stutter really bad sometimes. Blocks like crazy, can’t say certain words. It made the interview process to get hired stressful to say the least. Here’s my advice: Thiamine and magnesium supplements. It really helped, and then I just started off each interview with addressing it: I’d say, “To start off, I have a speech impediment, it makes things like public speaking and interviews interesting sometimes. I’ll get it out eventually, or I’ll think of another way to say it. Thanks”. That helped for me. That way when the blocks came, they knew it was my impediment and not me being retarded. Hang in there. We can lead normal lives. I excel in my position for years now. Talking on the radio can be stressful, but there are other people like you who are navigating these situations successfully. You got this