Oh, I hear you, took awhile before I finally hit on a med. with pdoc's urging to give it a try. Though many have reactions to it, well everyone can't always get lucky with the same meds., sort of like a custom made thing, trial and error. Lamictal has been the best for me so far, it's about 3 yrs. or close, since I've been on it.
Maybe the Wellbutrin is making you feel tired? Years ago when I was on it, it just made me so tired and didn't address my depression, so my gp tried several things, Prozac,Zoloft,Effexor, and none of them targeted my problem. I was successful with Celexa, but it petered out after a year and a half, long story.
Try to be patient, though frustrating, some meds take a few weeks before you notice any change. But please call your doc, tell him or her exactly how you are feeling, close communications, if possible, are necessary.
I wish you luck with this. We are here for you, so feel free to talk about stuff.
Take care now,
DE

((((((((((( fayerody ))))))))))))))