Many treat themselves the same way. Burn the candle at both ends. Sacrifice your health, happiness, and relationships.
It’s ok, because it is only a temporary state.
Of course your startup is going to hit big, and you can cash out and enjoy the rest of your life someplace magical.
Or, you’ll kill yourself rising to the top at some big corporation that compensates you well for “living on campus” while they attend to your every need. Make the big bucks for as long as you can before your time is up and you’re put out to pasture.