How to become able to speak in front of others

Are you good at speaking in front of others?
I think there are various levels, from being able to speak while feeling nervous to not feeling nervous at all.

I don't want to make broad generalizations, but it is often said that Japanese people are not good at giving presentations in front of others. Because there are many shy people.

I have also improved quite a bit, but I used to be extremely nervous. I even came home from my elementary school entrance ceremony, and once the tension wore off, I threw up what I had eaten (lol). Even though I didn't even go up and speak... I also ran a fever. (Was it a cold...?)
That is how much I disliked being the center of attention in places with people.

However, I have grown quite a bit now, to the point where people tell me that I am good at giving presentations. I have also almost completely overcome the mental aspect.

But it is not yet complete, as I cannot get rid of the physical tension. Even though I don't feel any mental hurdles, my heart rate goes up, I sweat, and in the worst cases, my body shakes... My body is showing a rejection reaction (lol). I guess it is not something I am naturally good at. (Have you all experienced this kind of separation between mind and body? I would like to explore this somewhere as well.)

Well, it will take a little more time until I become a complete version of myself, but I have been able to overcome the mental aspect of being bad at speaking in front of others. And I have some ideas about how to do that. Of course, gaining experience is important, but I think there is a prescription other than that. That is

Specifically imagine what will happen after you speak. And speak to verify that.

I think this is it.
In the first place, the emotion of fear is always hidden behind the inability to speak in front of others. And do you know what people are afraid of?

Actually, people are most afraid of the "unknown".
In other words, you cannot imagine the reactions of those around you after you speak, you don't know what will happen, it is unknown, so you feel fear.

Therefore, in order to make it harder to feel fear, it is necessary to eliminate the unknown. For that, it is necessary to specifically imagine the results.

Generally, the advice to "gain experience" also has the aspect of building the ability to imagine what happens after you speak as a result. Because experience is useful for predicting something.

But there are ways to train your imagination other than gaining experience,

• Have an awareness of why you are making that statement or presentation

• Train your reasoning and logical thinking skills

There are things like these. If the hurdle of gaining experience is high, please try it once. I think at least the mental resistance will decrease.