cant get out ma head

https://www.youtube.com/watch?v=c18441Eh_WEjust like the song, im going nuts over this guy, been a good 5 months now, same feelings.tried sleeping with other lads/guystried dating other lads/guystrying to do what i did before i met him now, and just playing games, watching tv, porn etc etc just isnt working.any advice or other things i could do or try out?