Some of the hardest lessons in life and not taught in traditional ways.
You will normally find a teacher in a school or other form of formal process for educating someone. There are objectives, plans and subjects. You walk into the environment with knowledge and perhaps some understanding of what you will learn or teach. These are often structured, surface level experiences that provide you the opportunity to learn a subject of their decision.
Another method of learning is through experience and exposure to someone experienced in the subject. Some call this person “master” or “teacher” or “sensei”. Whatever term you use - you need to pay attention to these persons. These lessons are often not structured, not surface level experiences and often take quite a while or an experience to absorb and learn. You may not even know you are being taught something until after the fact. You may not learn it at all but the experience of trying will make you grow.
Teachers are important and will be of major support as you grow but don’t object about life’s lessons along the way.