CBT is a form of psycho-therapy and recent studies have shown that it's solving depression and anxiety more than traditional psycho-analysis and yes, better than medication.
Major advantages are no side effects of medication and it's a robust statistical process where weekly anxiety and depression levels are measured and methods and treatment is adjusted.
I used react(Nextjs) + Chakra-UI and firebase as backend.
And developer question - what tool did you use to create that page? Some no-code or other thing?