@Linkat,
Some other things come to mind... mindfulness you can listen to things like the ocean or even things where a soft voice and music walks you through breathing techniques, you can keep a journal to write down your thoughts.
Not sure how old you are but my daughters school put something in place where if she feels anxiety or a panic attack she can pull out a popsicle stick and leave the room .. she can then go to a certain room where she can hang until the anxiety lessens.
Fortunately she is in a better place where I don’t think she has had to use it.
The big thing is finding something that helps you and having people around you that support this.