Working as a contractor?

I go to college full time (9-4:20) then work mon - saturday 8 hours a shift, im not doing great at college atm... :( and got offered a contracting job it pays �150 a day!!! so �750 a WEEK :D but it's full time and the contact lasts only 6 months, how hard will it be for me to find more contracting work after this contact terminates... basicly should I stay in college or go for a contacting career? Thanks, Gareth Jenkins