Here is a medical institutional resource from the Royal College of Physicians that forms part of the recommended resources for Module 3 (M3) of the ISAPS L.I.F.T. Program: Personal Wellbeing.

Royal College of Physicians - Mental Health and Wellbeing Resources 

This useful mental health and wellbeing resource helps you recognize the warning signs in yourself and others, as well as the steps you can take to stay well and seek the right support. Different sections focus on recognizing (i) the triggers, (ii) wellbeing tools, and (iii) where to seek support.