Hiya mate, i've been using a site called ProfitAccumulator for just over a year now, and they give you all the tools on how to get started and all the different offers and everything, it's been life changing tbh and in the first year i've been doing it i've made a significant amount, enough to live on as a student. Try it out here - http://www.profitaccumulator.co.uk I know the price seems a little steep at first but you will be making that back very quickly and will not really notice it after a while. The service they give is invaluable and there's a big community forum to help you if you have any questions. Let me know how it goes!
A couple of my friends use a site called 'CashtheBonus', I think its on Facebook. All are students and have made around 2k-3k from it and they give you all the spreadsheets. I think it is quite time consuming though but if you have time on your hands it seems Ok.