I can’t say my first or last name and the year I was born so I get you. Anywhere I go I make them aware first that I have a speech impediment so they know to be patient and not speak over me etc, if I’m really struggling that day then I’ll just ask to write it down or write it on my phone. I personally find eye contact helps, I have no idea why, but when I’m talking to someone and they’re not looking at me or I’m not looking at them, then it makes me stutter worse, probably because deep down you know they’re paying attention maybe