Ask yourself one question:
When all is practiced and perfected, will I want to be just like this teacher?"
Committing to a path of authentic self-cultivation requires a teacher. Sifu means teacher-father and is essential to true and full understanding. If you are on the fence about joining, consider that finding a good teacher is difficult is when you know nothing about your intended study. At the very least, try five different teachers from 5 different to learn enough to make an informed decision.