Because you have to think that you are not the only one in the world, and you have not found a job corresponding to an institution. So you can try it yourself, get a job first and then do it first. When in Rome, do as the Romans do and give yourself a preliminary social experience.
When you have some capital and experience in the future, you can develop yourself, or if you don't develop yourself, you can let others appoint you. At least you should let others talk to him about what you need when you are appointed. This reflects: your qualifications, your experience, your confidence and so on.
You are a math major, so you should have a lot of brains. I believe you are very clever.
You have to remember: a person is doing any work or something. Have a persistent attitude. Even if you can't bear to part with it, you should do your last day seriously. (Do things with conscience _)
Also: since we have entered the society, the goal is money. So, whatever you do, as long as it's not illegal. Even if it is a job that people look down upon, you should stick to it. Because when you make money, you hide your face in the Dai Li, and then throw it into the ground and hang it up. (Prove your own strength)