Has anyone ever had a family member, or other situation, undermine their progress in therapy?

A family member screamed accusations at me over the weekend and I feel like it wiped out weeks of progress in therapy that I had about controlling my anxiety and liking myself.

I didn't realize on how shaky ground I was emotionally.

Can you relate?

Are there people in your life who are the opposite of the therapist? Meaning, they reinforce bad patterns and leave you feeling physically ill?

And do you cut these people out of your like?

As it is, I don't know whether to cut this person out, cut him some slack, or berate my own self for being so weak and vulnerable that some harsh language against me has me this shaky.

Thanks. I could really use some help. I don't have therapy for another week.