One strategy that'll always help you is to enter trades close to the beginning of a new trading session. Since the London session is the most active of all, it'll be great if you can look for opportunities during that period. I aways like to catch the first proper set-up that occurs coming into the London session.

Of course, several other great opportunities abound throughout the day. The most important thing is to identify which trading period suits you best and make sure you're consistent with it. I always emphasize that the ONLY way you can get good at trading is to actually trade and do it consistently!