How much can I get for working in the north, Guangzhou and Shenzhen for one month?

I am working in Guangzhou now, but my salary is relatively low. If the company provides room and board, after deducting one month's social security, there is probably 4000 yuan left! The salary of 4,000 yuan, although I don't need to go out to eat and live in many cases, usually my colleagues go out to the supermarket to buy clothes, and I immediately lose more than 1000 yuan. Plus, once in a while, everyone gets together for a drink, which costs two or three hundred yuan each time. My parents are very uncomfortable at home, so I try to send more money to my family every time, hoping to help my parents reduce the burden at home. But my ability is about one month 1000, and we can't do more. The salary of 4000 yuan is about 2500 yuan, leaving about 1500. But in fact, my bank account has never been much! Because the monthly commercial insurance also makes me feel a lot of pressure.