What games have you been playing that you could never really get a handle on the mechanics until it just clicked and you fell in love with the game.
I was playing Dragon's Crown and mostly struggling to understand how I should be using the Amazon's moveset, the class I decided to go with, but then it just "clicked" and I've been addicted to the game since. This was a good 10+ hours into the game.
Demon Souls was the biggest one for me as that took me about 30 hours to get a handle on it but once I did it was night and day. I've put 100s hours into Demons Souls and Dark Souls since. Perhaps it's something to do with Japanese games not explaining the mechanics that well.