Hi, Go for it!! You can contact your local council for your kitchen to be inspected, and then you’ll be ready to start selling. There are some lovely helpful cakey pages on facebook, and lots of pages where you can ask questions and other bakers can help, such as cake baker & lets chat cake. The great cake ware house are a great supplier, are you in UK?
https://www.facebook.com/cakesandmakes Made with Love