Bet365 offer great opportunities for value betting and arbitrage. Value betting is a strategy that is proven to make money in the long term whilst sports arbitrage betting allows you to guarantee a profit before the game even begins.
Learn everything you can about the teams and the sport. Use Twitter to gain insight on lines and bone up on all the analysis you can. Be sure to understand your own stats, too: your winning percentage, units, and ROI. This bit might seem a little tedious, but time spent on research will help protect your bankroll.