I would verify this with the clinic or the supervisor. I would not want my file out there with a bunch of c**p in it for all to see. Who told you that your file had been scrapped? I am not sure of the legality of destroying patient files.

As sky_dancer said, it's hard to tell if what your therapist did was unethical or not, or rather, if it's a complaint that the state board or the T's professional association would consider to have merit. Those are two different things. What is clear is you had a bad experience that resulted in harm, not help. I am not sure how to get over that except trying again with a good therapist. As for filing a complaint, it's hard to know if that would be fruitful. If you want to pursue the latter, you could start with looking at the T's professional association and their guidelines and seeing if anything the T did violated any of these. Something like choosing one type of therapy vs. another for a specific problem might be more of a judgment issue than ethical, for instance, doing EMDR instead of talk therapy for trauma. It's hard to tell without more information. The part about "lied to me about how my records were handled" could be very serious if, for example, the therapist shared your records with people she shouldn't have. Are you in the U.S.? It seems like the medical establishment takes HIPAA violations very serious here.

Good luck.