Part-time job

I worked a part-time job for the first time. I was so exhausted, but the reason was not physicality, I guessed it was from mentality.
When I was in Japan, I used to work a part-time job hard, so working hard was not matter for me. The reason was in the system.
I worked in Japanese restraint; there were many Korean, Chinese, and Japanese. In the rules of the part-time job, if I found something I couldn't understand how to do or use, I had to ask another Japanese in Japanese. In fact, we had to ask someone had same nationality in our mother tongue, so we didn't need to speak English. Because of the rules, the worker parted into three groups from nationality. So we didn't need to speak each other. I don't like such an atmosphere. So, I decided to resign this job.