I would imagine it feels like a huge responsibility, and also immensely fulfilling.

I couldn't imagine being brave enough for it, props to you for doing this!

It's a responsibility and fulfilling, extremes at both ends. The key thing is self-management, and knowing limits. I learned a lot from the ASIST course, and I retake the full two-day training every two years or so:

https://livingworks.net/training/livingworks-asist/

I have no connection or affiliation with the organisation beyond being a delegate.