What a CRAPPY therapist.
The job of any person involved with trying to help others' mental health should be PRIMARILY: DON'T ADD MORE PROBLEMS ON TOP OF THE EXISTING ONES.
The fact that you said this: "she said...she doesn't know what to do with me" and "...it left me feeling hurt, as if I am a complete write-off..." tells me that this person is (a.) in the wrong profession and (b.) is idiotically without empathy at even the most basic level.
Get to a better educated, better qualified, more empathetic, more human, more intelligent, more logical therapist ASAP!
Get away from that silly, silly, silly person.
I've said this before on another thread here very recently: find a Jungian psychodynamic therapist who just reeks of intelligence and calmness the moment you sit down with him/her.
You do not want: a psychologist focussed on medicating and/or labelling you.
You do no want: a 'counsellor' who is merely trained in techniques for life, but lacks ANY deep understanding of the human psyche.
It's not you, it's her.
Proper, true, life-changing, mind-altering psychotherapy should happen at a regular time and place every week for a period of AT LEAST months, more often years.
It takes years to build trust and to whittle down your mind to the core things that need to be aired out.
Part of the process is just talking, until random memories or thoughts bubble up from the depths of your mind. Repetition happens often. It isn't always dark and heavy. It can be silly and fun. It is all of you, laid out on a metaphorical table, gradually, until you and your therapist can see it all, and put the pieces together in the right order.