New, looking for someone to relate to

Hi all,

I'm new. A little about us - we are a blended family of five. I have a biological son, age 9, from a previous relationship. My fiancee has a daughter, age 9, from a previous relationship who is diagnosed with Reactive Attachment Disorder and other Dx. We have a 3-year-old son together. 

My stepdaughter, who lives with us full time and I consider my child, is exhausting. Her diagnosis (RAD) causes her to push primary caregivers away. She steals, poops and pees herself and around the house, screams for hours, etc. I am homeschooling her now. We have done 3 inpatient psychiatric hospitalizations, 4 rounds of partial hospitalizations, intensive home services, etc. 

I feel SO isolated, lonely, and disconnected from most of my friends. I have one best friend experiencing similar experiences and she has been my backbone. I am hoping to find others to talk to. I joined Facebook groups specific to her diagnosis, but someone mentioned this caregiver support line tonight to me. I am interested in reading more, hopefully talking to others, and maybe leaning on this as positive support.

A little more about me - I am in graduate school to be a therapist, with a concentration in advanced trauma-informed and drug/alcohol counseling. 

I am looking forward to hopefully hearing from other caregivers! Moms, stepmoms, Dads, anyone!