I read in Wikipedia (a source I find really useful) that "mood stabilizers" (most of them) are really just effective at reducing mania (probably because they are so sedating, IMO) and do nothing - directly - for depression. (Note: Evidence suggests that Lithium does reduce suicide.)

What you are describing sounds like recurrent depression. I know of nothing that indicates that "mood stabilizers" reduce recurrent depression. These so-called "mood stabilizers" have been tried on me for recurrent depression, and I found them to be utterly useless. All they really do IMO is sedate. Doesn't sound to me like that is what you need.

It ticks me off when I hear of therapists recommending medications. Ts have just about zero training in medication use. I think most of what they know comes form watching commercials on television.

Just for laughs, once, I said to my psychiatrist that my T thought I should be on something-or-another. (The T had recommended it.) The pdoc said he thought it was a bad drug and that he, personally, wouldn't order it for anyone!

If a T thinks you need to be evaluated for mediation use by a pdoc, or your primary care physician, then that's all the T should say. Go up to any doctor and say, "My T thinks that maybe you should order such-and-such for me!" Wait till you see the look the doctor gives you! Like I said, I did it, so I know.