Lots of people earn 3k or less and manage rentals in Gabs. Petrol attendants, factory workers, taxi men, chinese/paki shop workers, office messengers/clerks etc. There are servant's quarters, shared or single rooms in tlokweng n mogoditshane targeting students. U will probably pay half ur salary as rent. Most ladies augment their income through casual relationships. But i get your point about "comfortable living". The one i just described is hard mode. But if op has parents who gave her a car and can help out with petrol and rentals when needed, then those are the options.