The teacher you described experiencing was a horrible maladaptive teacher who performed his job terribly. His job was to help you build confidence in building your tying skills instead of showing you selfish impatience on his part. Teaching is not about damaging a child’s self esteem but instead helping a child develop more self esteem.

Some people are just plain jerks and life will expose us to these kind of people and we learn to see them for the maladaptive individuals they are and distance ourselves from them.