Three meals a day, occasional classmate dinner, daily consumption.
Buy toothpaste, toothbrush, towel, shampoo, shower gel, clothes and so on. Generally, these expenses need to be around 400 yuan.
A steamed stuffed bun, soybean milk and eggs for breakfast is about four or five yuan. Chinese food is probably 12 yuan's mixed rice. Dinner is about 12 yuan mixed rice. 30 yuan a day is almost enough. Plus occasional dinners, 150 yuan. A month 1500 or so is enough. Some unnecessary consumption can be cancelled.
You have to pay the phone bill every month, 70 yuan, and sometimes you will go to social parties, and the expenses will be a little higher. But this will save a little, once every two months, and I personally think it will be fine.
Sometimes on weekends, you can go to the mall and hand out leaflets to restaurants, so that you can get some extra money to supplement your small vault. As your own reserve fund, when your living expenses are consumed for some reason, you can start your own reserve fund to solve your financial problems.