Working as a security guard in my neighborhood, with 9 years left on my mortgage. I pay about 2,100 yuan per month, and my take-home salary is around 4,200 yuan. I have social insurance and housing fund. No meals included. I work 12-hour shifts from 7 a.m. to 7 p.m. every day, alternating between day and night shifts every half month. I can start work just by going downstairs.