use this formel:
games you have played in your life/your age*consoles you own= score from metacritic games you should buy
or if this don't work, use this:
1.make a list from game genres you never bought (because reason)
2.start with a genre and play a game that is recommended the most in this genre
3.play it
4.if you like it mark this genre and proceed, if you don't like it strike it off and proceed
5.do the rest and be revived
if both of these doesn't work you are