I often wondered whether a little T post-op could help with depression regardless of how much estrogen and/or progesterone one takes. Not only depression, but with energy levels too, helping one cope more efficiently with the stresses of life, increase overall endurance and well-being. Food for thought.
Also, I think many doctors are quite conservative, are not up to date on the latest research, are not as thoroughly informed about the subject matter as they should be (we aren't a priority in their practice given how little of us there are) and may not be giving enough estrogen (or supplementing with progesterone) as a result so that this could also be the culprit.
As far as my own experience with hormones goes, I find I'm still not quite where I want to be and I am, for the first time in my life, actually considering adding a little T. I take a high amount of E and some P and although this has improved things significantly for me, there is still some room for improvement. I sometimes feel weak, lethargic, lacking motivation/initiative and my skin is quite thin.