(((((Bridgie)))))

I'm sorry you are having a hard time. Keep reaching out to your pdoc until he understands how depressed you are and that you need an anti-depressant.
He may be hesitant to put you on an SSRI, because they can trigger mania.
But there are others like the one Thinker sugested--Wellbutrin XL that are not SSRIs but work well for Bipolars.

Good luck and Take Care