So what I'm hearing is, you workout hard all night, are making great gains, sleep all day, and eat two crappy meals a day? All this with no injuries? And your biggest issue is your prewprkout doesn't last long enough? None of that adds up.
can see 3 hours a few days a week being useful. An hour of weights, an hour of technique work, and an hour of drills. But even that seems like too much.
But I don't see 5 hours a day going well. Also if you think youre working out for that long with any reasonable intensity, you're wrong. Short workouts are what you need, and a trainer, and probably a few books on human physiology, and a legitimate sparring partner. In lieu of all that you need years of smart training, a lot of research, elite genetics, and a whole lot of luck.