How much is the monthly salary of mold design now?

I am now an apprentice in mold, graduated from junior college, majoring in mold. Now even overtime is about 1800, which is the salary of an ordinary worker. If I meet a good teacher, I am willing to take it seriously, so I will teach myself. Anyway, in a word, if you have the ability, you will get paid. The value you create is directly proportional to your income. My master is about 30 years old and has worked for ten years. His salary is around 5000 yuan. The manager must give some allowance. If he knows CNC machining, mold design and manufacturing, and his annual salary is more than 100,000, it depends on your ability. To tell the truth, I am now making plastic molds. I'm not tired but dirty. The basic salary is 920 yuan, and everything else is overtime.