Be sure to notice the green speeds every time you play. Slow to very fast can be a huge difference. I have some info on putting distances on my blog...check it out and let me know what you think. And yes, it takes time to get the feel...yes, I said feel, like in real golf.
You can also use practice games to practice putting. You'll get 8 or 9 putts per hole before you reach the stroke limit. Just be sure to putt to a target and not the hole or you'll need to go to the next hole if you make it. Also remember, if you are using premium balls, that they will ware out and can be lost even in a practice round. The good news is you'll earn EX points for every stroke, even if you don't finish, and even more if you complete the round. There are tips and tutorials over there as well---->
Joey