Your dick gets hard thinking about that hard muscle you will build and have worshiped. The harder that muscle becomes, the harder it becomes for you to think about anything but muscle and the simple pleasures in life a simple horny jock loves to explore. And since you will become too dumb for many other jobs, you’ll need that muscle to make money. You might use it doing hard labor, construction, or other jobs requiring you use that muscle. You might use it as a poolboy, stripper, or other jobs requiring you show off that muscle. Maybe you’ll even use that muscle in other ways. 

Regardless of what you do, you simply do not require much. Simple guys do not need fancy things, and there’s no need to really think about that. You don’t need your own fancy place, perhaps opting for a cheap shared rental with other FitDimWits or becoming a houseboy. You don’t need fancy things as long as you are able to work out somewhere. Gym, food, supplements – those are your real only true expenses beyond the basics.