I used to avoid a lot of speaking opportunities. If I can go back in time to when I was in college, I would not avoid my introduction, because avoiding that made me more scared of presenting in front of class later. And when I'm presenting, I would tell someone in class to record me. And I would watch the recording and see how I stutter and see what's my secondary behaviors. Recording myself would also force a bad professor to behave. Professors do not want to get reported or get cancelled. I learned too late that my secondary behaviors include frowning before and during speech blocks. It's kind of a condition that might scare bullies away in high schools, but it's a condition that, in workplaces, might scare my potential allies away, which is bad. I did lose some allies. So now I disclose my stutter and my frowning condition to people I know or work with. And for talking with people I don't know, for example, like when taking a taxi or ordering coffee, I cover my speech blocks with voluntary throat clearing so that my frowning does not look like anger. So that's how I deal with my secondary. So record yourself speaking in class so that you can witness your secondary behaviors and so you can come up your own plan to deal with them.