Attached, my favorite Star Trek TNG episode. The workplace autist, Data stabs his therapist. After they eat cake.

I like The Loss (S04E10) where Troi loses her mental abilities and has a crisis about actually having to know how to do her job. Bonus is that early in the episode even with her powers, she was dishing out surface level platitudes to a patient who was clearly unimpressed.

How long has it been since you've watched that episode? What you're describing doesn't match what I remember about the patient behavior.

The first scene Troi had saved one of the patient's dead husband's keepsakes that the patient was overjoyed to receive back as a reminder of her lost loved one. The scene where patient was unimpressed, the second scene with that patient and was after she'd lost her powers. Troi was claiming the patient was in denial and not addressing the issue and the patient dismissed Troi's analysis. The final scene with the patient was when Troi still didn't have her powers back, and the patient admitted that (powerless) Troi had correctly read the situation and that the patient was now thankful that Troi gave the advice about denial. Only after this did Troi get her powers back.

Full synopsis of that episode here if you want to look at it.

edit: raw link: https://memory-alpha.fandom.com/wiki/The_Loss_(episode)