Oh Dear, that does make your situtaion a bit difficult. I know things are all topsy turvy for you. Sometimes change in ones life is the hardest to cope with. Giving over to what your dad has wanted, has indeed changed the character of your home.
I have just a few things that may help. If you can cut out your own private space, your own room, someplace that you feel comfortable this will help. Decorate it to your own satisfaction, and maybe find a new interest to help keep your mind off what is going on. Noone likes change shoved at you. Anxiety can make your pain worse, so do things to please yourself, and noone else. Try to be kind in the midst of this upset. Kindness goes farther, than being upset. You have your own life, and you can make it the best you can. Ever heard the expression, killing with kindness? Most fights or upsets resolve with a determination of making the best out of a bad situation., Your dad still loves you. Try not to resent this other person. I do know this is very difficult, I wouldn't have liked it either. Your CRPS is hard enough, without the upset. Cozy up with a book, or some interest, or take up a new one that you can do. I listen to Bob dylan alot when my pain is up. Seems to calm me down. I do hope that the situtaion you are in, calms down, and that your home, can have peace. I will keep you in my thoughts and prayers. ginnie