Extreme Anxiety in 11 year ol

Hello,
My 11 year old is exhibiting extreme anxiety in minor situations. She has been doing this since she was very young. I also have had severe anxiety throughout my life, but I have learned to manage it with medication and coping skills. I want to help her, but I struggle with putting into words and practice the things she needs to know and do. It is hard to remember all the steps I took in the past to get where I am at now. What book or resources do you recommend to help give her tools and knowledge to deal with her anxiety challenges. There is a lot of information out there, and I want to stay in line with Godly principles as well as self-government principles. Thank you for everything you do!