I was wondering if there are like loans for living expenses as well? (But adding that on top of tuition fee loans, repaying after graduation would be a pain)
Freelancing on the internet might be a solution.
Can RTL holders get any money?
Accomodation - Your university should be able to offer accomodation which should probably be cheaper.
Working here - Your first degree should put you in a better position than an undergraduate. But I would also think that English tutoring is the easiest.