Church or money?

ok i need money. i'm 17 and am paying for driving lessons and a car. i got offered a job at bhs and turned it down cus it was on a sunday and i like to go to church. did i do the right thing? my partner introduced me to it, and consequently my mum thinks he's brain washed me and i'm using it as an excuse to be lazy. :( i love going but is it right to put it on the back shelf for a while?