Mdrol seems like a real poor choice in the ways mentioned above and because lethargy is a common side with that compound.
I also agree that the p90x program is a poor choice for ANY ph/aas because the lifting routines have such short rest periods. In which, your potential for moving heavier weights is somewhat limited.
In order to compromise, maybe you could do the cardio and ab routines from the 90x program. And then do your own lifting routines to increase intensity in that realm. I suppose that might have a chance to work with a hormonal addition :think: