I have no advice, actually am trying to solve the same problem myself. One thing that is obvious though is that food is a much bigger factor than I gave credit for. My best days have been after eating as much clean carbs as possible thru oatmeal, fruits and veggies leading up to an evening work out and then getting all my proteins in the evening right after the workout.
my work schedule makes doing the 6-8 meal a day thing difficult so I eat breakfast on the way in (instant oatmeal)
put measured out healthy snacks on my toolbox and snack often til lunch
lunch, usually bagel and tuna or something like that
switch snacks to a little higher on the sugar side and start drinking electrolytes instead of just water
no food 30 min or so before workout
dinner... you get the idea.
like i said this is new to me and i'm glad you asked the question so some people that really know what they're talking about can weigh in.