Hello & Welcome, Livlife!
I suspect there are several "right places" for your post - here is one of them. Other forums where you may find help include
Caregivers Support and
Relationships & Communication (and others).
Given the duration and depth of your husband's depression, it may be time to look into disability (USA). Although you can apply on your own, working through a lawyer who specializes in disability claims is much easier and statistically much more effective.
Yes, you yourself need support in coping with the depression of a loved one.
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My dog

mastered the "fetch" command. He would communicate he wanted something, and I would fetch it.