After reading your reply I can see that I, too, can negotiate on behalf of another person's needs and wants. For myself, it is so different. As I've matured and grown over the years I had to learn to say, "no," and I didn't really learn to do that until my career taught me how to do it. Also my kids and husband would stongly voice their disapproval when I would run myself into the ground for others, but not for their needs. So I slowly by need, learned somewhat.
However, I know I hurt my kids by putting the needs of other people before their needs, and even not standing up for my own kids. It just happened this year where my extended family was treating one of my children very poorly and I did not support my child. I won't go into it here, but it was a hard eye-opening lesson for me. I feel terrible about it, and have apologized to my children for all the years of not putting my own family first.
I have a friend who is very opinionated and if I do not share her views I"m too frightened to tell her so. She comes across harsh when people disagree, but in reality she is only sharing her opinions. I cringe and feel it is some sort of judgemental, critical attack, when it isn't. It's just her strong personality, which is actually gift. The fist time I said to her, "I have a different opinion" I felt two inches tall and felt I would be slapped and rejected. She was shocked at my response. Yet, asked me to explain myself. I did while shaking on the inside. So over the years with her, I learned I can share my views but I often times become completely blank in the brain and can't even articulate any solid reasoning. Just blank, which is the result of feeling overwhelmed and believing I am going to be slapped or punched. It's like a freeze response, but the situation is only talking about opinions. It could be something as simple as a different opinion on colors of paint.
I can't tell what reality is when it comes to myself. It's something I have been working on in therapy. I did role play some with my t on being assertive toward my mother, and I did have a negative reaction and that role playing did not go well.
Just this year I had an incident with my extended family where I was "rejected" and left out of something. I had to have my friends tell me that I was being treated poorly, because even though I was feeling rejected, I believed I was just the "crazy" one. It helped to have my friends tell me to stand up for myself. I did so. Emotionally I was a wreck during that test. I could see where the years of abuse from my family just messed me up
So, being assertive when it comes to what I need is different than my job. So I guess I'm working on it.