What skills should I learn at the age of 20 in Xining?

Learn automobile technology at the age of 20. Now basically every household has a car, which is a third-and fourth-tier city with a relatively large number of cars. So many cars need painting, beauty, maintenance, auto insurance and so on, so this market is huge. After learning the technology well, it is better to work for a period of time to accumulate some experience funds, and then open a shop and start a business by yourself. The investment in this industry is not very large. Still relatively profitable.

Hope to adopt. Thank you.