My speaking is fluent the majority of the time but when in situations I've had bad experiences in before it seems like I won't even attempt to say things.

My speaking is fluent the majority of the time but when in situations I've had bad experiences in before it seems like I won't even attempt to say things. My stutter has got so much better over the years, to begin able to talk fluently almost all the time. But any time I begin to think about my stutter, the fluency will go away. Today for example, I requested what I wanted for my lunch at school without any bother, but the payment system wasn't working and I had to say my full name to the person working behind the counter. In the moment I got really aware that these times when I've had to say my name I've struggled with in the past, and it felt like I wasn't even trying to say my name, like my brain refused to put myself in a situation where I might stutter. Other situations are like when I'm telling the bus driver where I want to go. When my stutter was bad before I used to get stuck on place names. Now, I can say literally anything apart from the place I want to go. Has anyone had any similar situations like this before or does anyone have any advice?