My recommendation would to not starve during the day. Grazing is good as long as its not all cookies, sweet, "bready" things, etc.
It doesn't seem your meds are working. That is where I would start first if I were your pdoc (which I am so not a dr but its obvious your meds aren't helping your mood).
I imagine if this adipex drug does what you want it to, there is a possibility of you abusing it or refusing to stop taking it if it makes you lose more than what you want as a "start"
Start with your AD meds