not a mental health specialist per se, but she helped me massively.
after an attempted suicide I ended up in hospital from suffering a seizure, the nurse who treated me said the nicest things anyone has ever said to me which I still remember but will keep to myself!
She was around my age, mid-20's and my biggest regret was not asking her out. I know she would have said yes but I was just too nervous.

But I think of what she said every time I feel down and it helps a lot, which I'm hugely grateful for because I feel down often!