I have a worry about offending people. People are pretty tough and don't care a lot of the time so not sure why I'm so bothered?
You will get over it, its only a matter of time.
All in good time.
15-20 years ago I could have been writing the stuff you write- not being assertive, worrying about aggression, offending....all kinds of stuff
Over time as your mind matures and clarifies, stuff that bothers you, leaves you....just goes
Stay as you are. Each season has its value. Something will go missing if this over sensitive phase is blotted out. Spectrum coverage it is. You will look back and be amazed how being over sensitive was amazing gift. Over period of time, it may well transform from personal sensitivity to just sensitivity...
From personal perspective to general....two polarities balance out. Life finds balance and with that arises equanimity...
All in good time