Man...this is a toughie...and one I'm working through right now. I'll probably always be working on some aspect of my boundary work as...recovering people pleaser and master avoider of conflict here. I hope you find it useful. 

I mention two brilliant people who I have found invaluable in this arena...Lindsay Mack at Wild Soul Healing and Neghar Fonooni. I have found them very supportive along with the life coaching strategies in this area. 

Enjoy!