Thank you for your answears. I must admit I didn't expect so much consistency and agreement on the answears. I wasn't sure I could be upset or it was right to be upset.
At the end I told my sister how upset I was and she made me feel bad about my feelings. She kept affirming there was something more about it for me to be so upset and kept inquiring me what it was. And then excused my therapist and her behaviours. Saying what she thought I was thinking that she assumed as the trueth and when I told her it wasn't like that she tried to conviced me it was only I was lying/not aware.
I felty so poorly valitaded and scrutinized in my feelings, fears and problems that I got upset with my sister too. Specially adding her cold non verbal.

I realy nead validation and none of my family members can give me something as simple as that everytime I bring my feelings. I always have to hear them say what I did wrong, what I should have done instead and why the other people I am upset with are in fact right.