Tbh obviously being on minimum wage sucks, but 70hr weeks even at £6.19/hr mean you're earning a good bit more than me lol! If I could work mega hours but get paid for it then I'd be all over it!
If you need some real motivation, the guy doing the inductions at the Hospital where I work said that long term smoking causes your knob to shrink! ;) (He didn't word it like that, but it's true nonetheless lol)