From Q user: Mr. Jiang
I feel a little sorry for you. Your parents are almost like most conservative parents. Everyone thinks that state-owned enterprises and civil servants are serious jobs. You can't lose your iron rice bowl. As long as you say that your work is decent, you don't care whether you live well or not. If you can't communicate with her and convince her, you can talk to someone who can convince her.
But I think it is more important that you resubmit your resume and find a job, preferably with a higher salary than now, so that you can convince your mother to have a heart-to-heart talk with her.