I would find another site, I went back to a health site I enjoyed that had lots to do and good forums, etc. and worked there instead of facebook. I deleted all my friends on facebook except "real" friends and relatives and quit ALL my games.

Now the only game I play is a hand or two of Solitaire on my computer before I come here or work on the computer. I limit my computer use to mornings and most afternoons and evenings I do other things, I turn off the computer and make it a bit harder to get it up and running again. Break the cycle.