Hi, and welcome to this forum.

My suggestion would be to first read the "Beauty is in the 'I'" and when you start feeling comfortable with what it says, then starts setting your boundaries with those that don't respect you.

For non-confrontational dialog, I would suggest the "I statements." Sometimes they work and sometimes they don't, especially with others that would rather be confrontational.

Something else that may help with your sensitivity is the STA thread. (Stop, Think, Act)

None of this is fool proof, but it sure goes a long way to helping you with many issues.

Good luck and let us know how it's going or if you have any problems with the strategies.