Yeah, I can see why you're thinking of changing meds.
I've been taking Wellbutrin for 9 years now.
But, for me, it's the mirtazepine that seems to work best for me in terms of rapid symptom relief. I think I'd be less stable, if I didn't have the others, though, including the antipsychotic Abilify, also PRN Ativan.
I'd like to look into gabapentin for anxiety...
Let us know if you change meds and how you do...