The more it frustrates you the more it will happen. When you have peace inside of yourself then it will likely go away, or you won’t notice it anymore. So I would really recommend the Dave McGuire course. They have an inexpensive self help book on Amazon called “Beyond Stammering: The Mcguire Program for getting good at the Sport of Speaking.” You can have the book downloaded onto your phone in minutes if you get the Amazon Kindle app. The book will go through psychological reasons for stuttering, give you a breathing technique, and inspire you to get out and practice speaking. The program will be fear inducing but use the people closest to you for support. Keep practicing the techniques and follow what the book says. Then I recommend reading “Redefining Stuttering” by John Harrison, someone who stuttered for many years and was part of the National Stuttering Association for many years. You can find a free link to the book if you google the title. If you can’t find it I will help send you a link. I was surprised to find the book for free after seeing it was sold out on Amazon. It’s also possible that you are cluttering, not stuttering. Look up “cluttering” on google. And for real, tell your mother it shouldn’t bother her. Tell her that it’s making you feel like your environment isn’t safe around her. It’s like if you were a soldier surrounded by land mines; you would be stressed and your muscles would be tense. And you would hold back and slow down your every movement. That’s what’s gunna happen if you keep worrying about your mom’s opinion and allowing her to focus more on your stuttering than your message. Your muscles will become tense and you will hold back your expression, leading to more stuttering.