Learning professional related documents
Learn professional certificates. For example, if you are engaged in vehicle management, you can learn some special certificates such as advanced driver's license or forklift license. You will get better treatment because of your skills.
self-taught examination
Take the self-taught exam, such as undergraduate or postgraduate entrance examination. But you need to pay attention to this. You have a degree, but it takes a long time. If you want to concentrate for a period of time and improve yourself in a few years, you can consider the road of postgraduate entrance examination. Then get on well with your tutor, and you may have a better job after graduation.
Study for an MBA
Reading an MBA, relatively speaking, the main task of reading an MBA is to make friends, not for documents. Although your education has really improved, the most important thing is to expand the circle of friends around you, that is to say, don't go in the wrong direction when studying MBA.