Replying to Fuck..

so i lost my beer delivery job after failin the drug test..now the boss is offering it to me if i promise not to smoke and they'll test me in about a month or so randomly to make sure.. this will ruin a lot of my fun all summer and it would mean no weed until mid august or later
idk what to do my dad is convinced i need this job which i do its a sick ass job with sick pay.. is it worht the sacrifice or to piss off my dad and still have a great time