Just want[ed] to make sure [if] this note is correct!
In this industry, [the] boss must [] objective[ly] analy[ze] everything. It must happen in the future to somebody's subordinate, because we are business partner[s] who are neither manager nor [direct report]. Someone [who] show[s] his/her attitudes and expressions just like [me] told me that I am a subordinate[,]not a partner. Everyone is selfish[;] no one [] stand[s] on other people's position [and] think [that] it will make us feel good. I need to think how to make [myself] feel good. That's all enough! Just tell me, I [will] never become this type of person in the future. I appreciate a lot and I have learned a lot.
--------------
I'm not sure if I captured what you wanted to say. Maybe include the Chinese text in a comment?