So, a lot of the techniques described at the end pretty much mirror my own mental health regimen. Mindfulness to stay out of my head and appreciate things. An understanding that what 'I' am is not composed of the thoughts and emotions that pass through my head.
This in particular is wayyyyy more important than it seems to be at face value.
The one thing I don't like and have never liked about depression treatment, specifically arguments against suicide, is the guilt aspect that inevitably brought up. 'Think of the people who would feel bad of you killed yourself. Think of how bad they would feel.' Which is just utterly gross to me as an argument. A person genuinely considering suicide is not benefitted by feeling guilty.