On non work out days try to force your self to eat at least 5 times a day with 1 gram or slightly more protein for each pound of weight divided as evenly as possible over the 5 meal or 6 meals. Eat a slow protein mixture with at least 10% fat (no or very low carb) just before sleep. At least 30% of total calories in a day should be high quality good fats. Carbs should be adjusted to your activity level with most carbs eaten early in the day.
On days of workouts immediately before workout eat a mix of whey isolate (and 20% hydroloysed whey if you can afford it) with other whey constituents wth no fats or carbs 1/2 hour b4 workout. I can't remember the exact reason why right now but your post workout meal should be at least 20 minutes after workout but before 40 minutes after work out consisting of a drink made up of a mix of at least 50% protein isolate with egg and or casein mixed in to take full advantage of cortisol prevention and protein uptake, the only high glycemic carbs of your day at 20 % of total calories is desireable at this time (most recommend 60% or higher but whey isolate increases insulin output almost as well and is better for muscle synthesis.) and 10 % of total calories of this meal of fat made up of fish oil, flax seed oil, and MCTs. Glutamine peptides are nice addition to both these meals as is glycine, okg, and tyrosine.
Personally I mix a 50 % whey isolate, 25% hydrolysed whey, 10% beef serum, and 15% brewers yeast with 3 egg whites pre workout and 50 % whey isolate, 25% hydrolysed whey, 25% aussie caseinate with 3 egg yolks as a shake with capsules and gel caps of fish oil, glycine, glutamine peptides, mcts, ALA, RLA, tyrosine, OKG, and beef collagen for post workout. I am currently on an low calorie, low carb diet trying to get below 300 lbs without losing any strength. I have succeeded so far losing from over 445 lbs down to 365 lbs. I only lift 2 times a week with 2 work sets of 3-7 reps of 5 exercises completing all warmups and worksets within 30 minutes. While I do no aerobics I still out walk my colleagues who weigh 1/2 my weight, both in distance and speed.