I work as a technical engineer in the Shenzhen stone industry, with a salary of 3,000 including food and accommodation. I have been considering whether to resign.

The salary of a technical engineer is indeed a bit low. Personally, I think it is better to resign. It is not a problem to find a job if you have a skill, but don’t block your way out first. Now the employment pressure is also It's very big. You can look for a job while working, and then quit your job when you find a suitable place. Moreover, you have been in love for 7 years, so you must be considering getting married. If your income is small, you will not be able to support a family in the future.