Congrats, and good luck. Best advices I picked up are:

Praise only their actions and not what you think they are. (i.e. you put lots of effort on that, I am proud of you VS You are so smart).

Help them go through emotions of any kind, but don't try to dismiss them or make them happy. A little pain in the short term will help them grow more resilient.

Hi, how come you don't have to KYC your customers? Sounds super cool. How come more people are not doing it?