I know my self-talk is more positive now

Improvement here is almost impossible to feel, because the previous setting doesn't stay around to be compared with. Nobody can accurately recall what their own head sounded like eighteen months ago.

The evidence turns up sideways instead. You spill something, swear once, and move on, where the old version would have taken it as further proof of a general condition. That's the whole change — a shorter recovery, not an absence of the thing. It happens quietly enough that you'll only catch it if you're specifically looking for it.