The most stable job

As a newcomer, I plan to recharge 500u next month. How can I earn 10u every day? My requirements are not high; I will work 12 hours a day and don't have time to keep an eye on these. I will just play a bit after work. I looked at my previous random plays, and each time I recharged 100 RMB, I always used a hundred times contract, and the result was that I was liquidated by the end of my shift. This time I have thought it through; I just want to earn 10u a day. That would amount to 3650u in a year, which is already very good for someone like me who is just a worker.