I work a lot overseas for similar rates. The plus side is that wet areas are often fully tiled ( 25 to 30 mtr wall and floor) with large living areas 40 to 80 mtr so more area to lay although vinyl and wood effect floors are becoming fashionable tooI am
I am a specialist tiler and I charge between 40 to 75 pound a m² and your close I make around 150,000 per year. I make more than doctors. Happy life