Hello AceScot: Thank you for bringing your concern here to PC. I see this is your first post. Welcome to Psych Central. The Relationships & Communication forum, here on PC, may also be of interest to you. Here's a link:

https://psychcentralforums.com/relat...communication/

And then here are links to 9 articles, from Psych Central's archives, that discuss various aspects of treatment resistant depression plus one that offers tips for surviving suicidal thoughts:

About Treatment Resistant Depression (TRD)

Ketamine: A New Treatment for Treatment Resistant Depression

New Hope for Treatment-Resistant Depression: Glutamatergic Antidepressants (Part One)

New Hope for Treatment-Resistant Depression: Glutamatergic Antidepressants (Part Two)

This Under-Utilized Drug Is Actually Critical for Treatment-Resistant Depression

https://pro.psychcentral.com/seven-l...nt-depression/

https://psychcentral.com/lib/what-yo...nt-depression/

https://psychcentral.com/blog/the-se...nt-depression/

https://psychcentral.com/blog/a-pep-...nt-depression/

https://psychcentral.com/blog/how-to...idal-thoughts/

I hope you find PC to be of benefit.