So sorry. This sucks.

Do you feel comfortable asking her more on Monday about why she and/or her supervisor don't think there is any more that she can do for you? It may well be their limitations -- in my view they are very limited, unfortunately! And you may disagree entirely with their opinion. Probably will, even. But at least, then you might know some more -- about therapy and therapists and what you can trust them about and what you can't.