I think you should be realistic. It will be good for you to be an apprentice in a bigger company entrusted by your family. There is no way out, you can only get a low salary in a small company (1200 ~ 1800, you may be lucky to get 2000 last year, and it is estimated that more than 1800 people will join you as cheap labor this year).
Finally, the mold design is not difficult. A good master with a good environment needs 2-3 months to draw a simple mold independently, and a capable master can be independent in 2-3 years, but his salary is 3-4 thousand. It's good to be a manager and supervisor in the mold industry, with a cap of around 5000, unless your English is good. Good mold design mainly depends on whether your personality is careful and patient! ! ! If so, congratulations on your falling into a rut. . .