The best way to work it out is pretend is go to
Start Calculation and input the details as though you are getting at job at minimum wage ( which a lot of part time jobs are anyway ) 16 hours at £5.52 per hour. Bear in mind you have to work a minimum 16 hours to claim working tax credits.
My guess is you won't be any better off and would probably be better spending time at college and trying to gain some skills in different things.