I am a high adrenaline and high cortisole victime

[Deusmaximus]

Whenever I am in meetings, critical discussions or arguments, my voice starts shaking, high heart rate and nervousness to the point of not being able to function correctly.

For example today I had a conflict with someone and my lips started shaking and my adrenaline raised to the point of hyperventilating. I will always lose in such situations.

Any ideas on solving this problem??