About sumcCantonese is not as difficult as you imagine. You can learn how to use Yale Romanisation System for pronunciation; putting subject, verb and object in the right way to form sentences; past, present and future without "go, went, gone". In terms of written materials, you can learn Traditional or Simplified characters as you wish.
Welcome complete beginners to advanced learners. Feel free to get in touch for a trial lesson and a tailor-made curriculum for you.
My students are from different parts of the world, e.g. Italy, London, France, Australia, Mainland China etc.. Let me share with you my student feedbacks when we talk next time.