Hello & Welcome, Cw13!
PsychCentral article:
Treatments for Obsessive-compulsive Disorder
PsychCentral article:
Depression Treatment (multiple pages)
Brief impression: Though some of the same medications may be used for both, the kind of behavior modification therapy used for OCD is unique to that condition.
Please keep looking at this forum and the one for
OCD. Folks with both depression and OCD have posted before.
__________________
My dog

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