I Am in Certification Training

I am in Carrie Marshall’s class, she’s amazing!!
I’m looking for some advice to work through some anxiety.
I’m a quiet, introverted person. I find myself resisting my feelings so hard in the small group training that I feel like I’m shutting off from my own body, blocking my brain, and feeling sick to my stomach.
I believe it comes from uncertainty. I speak four different languages, none of them perfectly, and only have eight years of schooling.
This shouldn’t be an issue. I do well in life otherwise. I’m a great mother, own a grooming shop, and I’m a master groomer.
I do my 20 minutes of coaching 1-2 times a week.
I am desperately looking for a breakthrough.