The diazepam shouldn't conflict, although if you're getting more anxious you might want to stop the rhodiola and see if it's the problem -- it can be stimulating. You want to stimulate for depression, but not for anxiety. You might try substituting ashwagandha and eleuthero, two other adaptogens, and compare results. They're not as stimulating as rhodiola. Still, none of these target GABA, which is what the diazepam is targeting.