Hello & Welcome, Sirshadowd!
Wow. You are dealing with a lot all at once and, already depressed, I'm not surprised you are feeling worse than you ever have.
You are reading a self-help book; good. (You've also joined a support site.) What else have you tried or are trying? Has anything helped even a little or even for a short while?
Just for reference:
PsychCentral Online Depression Resources
PC Crisis Resources
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My dog
mastered the "fetch" command. He would communicate he wanted something, and I would fetch it.