I am sorry you are dealing with this. Family can be so hard. I feel like it is easier to leave abusive partners than it is family members. People are quick to support walking away from an abusive partner, but so often like to encourage one to tough it out with family.
Do you have a T you can talk this through with? I do not know the extent of what you are going through, but will speak from my own experiences. I do feel that it is worth it to try to make family relationships work, but not at the expense of your own well being. Sometimes the best thing you can do is to walk away. Either temporarily or permanently as the case may be. So often, abusive family members do not allow us to set even the most reasonable boundaries. Then, we go through life believing we are not worthy of boundaries, and all that goes along with it.
The single best thing I have done for my own healing path was to make the choice to go no contact with my mother. It hurts, but the toxicity from her was not something I could fix. I tried a long time to make it work, but finally recognized that if she did not want to heal herself then I could not force it. I hope you do not have to do the same, but if you do know that it is ok to put your needs in a place of priority over toxic family.