[rwallace]

What's to understand? If all your acquaintances started cutting themselves or smoking crystal meth, would you insist on emulating them in that too?

As it is, your standard of living would be markedly improved if you went and lived on the streets and scrounged food out of dumpsters. Bonus: you're not even effectively learning the material you're nominally studying. Cut back to a sane workload. If they won't let you stay in that course at that rate, transfer to something else, or drop out entirely. If being a homeless derelict would improve your standard of living, you need to do something other than what you're doing.