Have you tried applying for any scholarships at all? Most grad schools offer partial or even full scholarships which should cover your tuition fees. Living scholarships also exist where they pay you a stipend every month. Not much but every bit counts.. Grants would be good and all, but it also depends on what's funding the grant. Unfortunately, it's hard to get grants due to the sheer difficulty in getting the necessary funding, added to the fact that most people tend to underestimate how much they need when they first apply for the funding..