Quick question

Quick question I find myself not stuttering at least in a much minor way if I am in a place alone talking to myself. If I am talking to other people most of the times I stutter. I don't stutter when I am upset or angry. I know this is a mind thing. I just would like to know if there is anyone with a similar finds her/himself in the same situation as I am. I am new to the sub and so glad I found it. Just a background story: I had problem as a kid but after it passed. But in around 2016 it came back and now in 2020 I am still having this issue.