I'm going to assume this isn't a troll, odds are it is based on the title, and that you weren't looking for a bunch of guys to give you tough love speeches. I am about your age and I used to work construction, and this is how I would manage the two. I would get up hour and fifteen before work everyday, immediately drink two cups of water and take my morning sups. I would then make breakfast, which would consist of 5-7 eggs, some rye toast, oj, and a coffee for the road. I would also pack a cooler with snacks, usually Greek yogurt, Protein shake and some nuts, and leave it in my trunk. I would then drive to work and at work eat two hours in on a quick break and grab a decent sized lunch then crush the protein shake on a quick break about two hours before leaving. I would get home and be crushed so I would eat immediately and then shower. I would then go take a nap for about two hours wake up take a preworkout and go to the gym. I'd come home take protein again eat the last small meal of the day, usually something fiberous, and then take some melatonin and ptfo around midnight. This schedule is doable for just about anyone. The high calories will keep energy and metabolism up especially if you couple it with the prep pt the army recommends.