I have a friend who's been in therapy for over a decade, due to debilitating anxiety from childhood trauma.
Went many years to first before switching to second, same story. I asked "well have you gotten any tasks or tools to help you deal with it?" multiple times, always same answer: "No".
Third time lucky it seems. Now seeing a therapist which comes with concrete suggestions and tasks. Things have improved. It's not a trivial problem to solve, but at least there's change now.
edit: You may ask, why stay with the therapists that didn't help? Anxiety... didn't want to upset the therapists by suggesting it wasn't helping.