Practice breathing practices of Pranayama.
Take control of all your emotions. When you are nervous or tense, this is the best time to practice.
You can sign up for psychotherapeutic breathing courses.
It seems to me that with some practices, it is still better not to overdo it, because there are quite large risks of harming your health if you do not act under the guidance and supervision of an experienced mentor. I remember that after a powerful practice I had convulsive seizures.
And all because of the low level of training and a heavy load on the body. So you better do not take risks, or act under the supervision of a pro.