Trying to get over someone I've had a crush on for 3 years

There is this guy and we first crossed paths during new year 2013, he was walking passed me on his phone and I was just looking around and he just looks down from his phone into my eyes (I was sat down). It lasted for about 30 seconds and I looked away, but then all of a sudden he came to wish me a happy new year and was really friendly. I guess that's how it sort of started and I like him a LOT, but there too many reasons for why I can't approach him about it and that's why I need advice on how to get over him and move on. I've tried avoiding him physically and online but that still doesn't work. So if you guys have any advice please share. Thank you