If you are looking for useful information and resources about supporting children and adults with anxiety-related issues, there are a lot of different websites and groups online. One website that does offer useful, free resources is Therapist Aid, which can be found using this link below:
To use the resources on their site, you do need to register and set up an account.
Please note, as always, if you feel you need professional advice then you should seek this either through your doctor or ask school to help signpost a source of support, such as CYPS (Children’s and Young People’s Services).