Probably because of my own ability. In the past ten years, your working ability has not been improved, and it is still similar to the level when you first joined the company. In this case, it is impossible for you to get a promotion. Or maybe your working ability has improved, but it can't bring more benefits to the company, so the company can't get a raise and promotion. After all, enterprises are all for profit, and only if you can bring him more benefits can you get the recognition of the company.

There are so many employees in a company that it is impossible for all employees to be promoted, only a few people can be promoted. If you can't compete with others compared with your colleagues, then your chances of promotion are definitely much smaller. Only by constantly striving to surpass colleagues can we be promoted and raised.

Also, your background is not deep enough for others. In this society, many times we still need to use our own contacts. If you have your own contacts in the company, you will have a better chance of promotion.