When a person new to martial art training enrols in a class they usually don’t believe they can get to black belt. They are more likely to think “It would be great if I could get a green or maybe blue belt” They may like the thought of being a black belt but it’s not actually a belief, it’s just a wish.
I’ve been teaching traditional Taekwondo for forty years and have taught many hundreds to black belt and I know from experience that your belief begins to change when you get to blue belt, which is about the half way mark toward black belt.
At that stage you can look back and remember how you felt as a beginner and how each successive promotion to the next belt level spurred you on. After a while that regular striving for the next goal and more importantly its achievement, becomes normal. You begin to believe through your past successful experiences that you have become a consistent achiever and in fact there really is nothing stopping you from reaching black belt.
Self belief often strengthens with the continuous belief in your ability to succeed especially when aided with regular encouragement from someone who has already achieved what you are striving for, in this case your instructors. They know exactly how you feel every step of the way because they have completed the journey themselves.
Self belief is the precursor to confidence. If you don’t believe in yourself it shows in your demeanour, speech and actions. When you have self belief people notice and treat you differently and that builds super confidence.