I empathize with your ongoing struggle with this.

Regarding the neuropsych evaluation, what they can do about it is help to isolate to a greater degree than you can exactly which your deficits are, and develop therapy strategies to help resolve these. This could involve occupational or speech therapy. My speech therapist had me do specific cognitive exercises that significantly helped resolve my deficits in short term memory and executive functioning.

I understand your frustration; that said, your negative thoughts and emotions may be exacerbating your condition, and the neuropsych evaluation may be helpful here as well.

Best to you as you continue this journey.