Lilymop,
I definitely have that problem, everytime I open my mouth with people it gets me into trouble whether they say so or not I get these feelings like I shouldn't say anything, but that cant be right either.

I think its healthy to speak up for yourself, it shows your own accountability and where you stand, I do believe the right people will find you no need to make others comfortable and neglect what you may feel is right or correct.

People don't have to like it but accept that there are others that may feel or think differently and I need to accept that as well. Sometimes their angle or view will help me better shape my own even if they disagree with some parts of me.

Feel better I think your on the right track.