Keep drinking that green tea if you have been already. It should help your joints and everything else.
Noone should feel the urges to keep cracking if they are relaxed mentally and physically. I have been cracking all my life, or for as long as I can remember. I'm learning how to relax and not be so obsessive compulsive. Of course, I still crack, but I don't derive so much pleasure out of it like I always did before.
Try to rid yourself of all desire. More easily said than done, I know.