Of course, it is better to work than to learn a skill, and all kinds of skills are easy to hide. I suggest you choose the technology with market demand to learn according to your hobbies. After learning well in this way, don't worry about not making money. Like interior decoration design, chef, water and electricity engineering installation, car beauty maintenance, wedding makeup photography, etc. It is closely related to people's lives, and it is a technology with market demand.

Of course, learning from teachers is better than training schools, and the key to technology is practical operation. As long as the master who learns from the teacher is willing to teach, it will come faster than the training school and there is no training fee.