I suggest you learn from the chef. Because at the age of 30, my learning ability will decline, my study time will be reduced, and I will not be as full as a student. The advantage of a chef is that he doesn't affect his work and has enough time to practice. Self-study is totally ok. There are tutorials on how to do it online. Follow them. Eat it yourself and you'll know soon. You do it every day, more than 360 times that year. How can I learn well? It depends on whether you have the determination and perseverance to persist. Nothing in the world is difficult for one who sets his mind to it.