I'm so sorry, Myrto. From your other threads, it appears this therapist was on some kind of destructive ego trip using your well-being as her plaything and frankly I'm not surprised she'd drop you like a hot rock, based on what you've described. The way she was acting was nuts imo. She sounds like she has some issues herself and she took them out on you. You don't deserve it and I hope you can work through it, either by yourself or with another therapist.

Do you think you could file a complaint against her?

You shouldn't die, you should live and get better. You can do it. This woman is not your life and she is unworthy of you. People do care about you.