This strikes me so hard. I am actually an assertive person, but in hiding. It is so not to offend others or making them think that I am a person that I am not. This post has given me the insight that what I feared about was me being AGGRESSIVE to others. Now that I have been enlightened of the authentic meaning of assertiveness, I think I can open up a bit to others and know more about myself.
It is always a matter of thinking about what is good for other people, but saving something for yourself.
Thanks a bunch @aggroed