it seems unlikely your mother will change her position. perhaps you can talk to another trustworthy adult who isn't faith based, your dad, school counselor or supports your mom's world view. someone who can effectively advocate on your behalf. but you have to be careful. I have worked with youth in your similar situation maybe who were LGBTQIA and not to scare you but often times we had to remove those youth from their home for their own safety. I don't think your situation is dire. at least I hope it's not but there is cause for concern bc your mother seems predisposed to not support any form of treatment for anxiety or mental illness. why isn't your dad able to advocate on your behalf?