I tried to quit....but then I started to look at ffxiah and got dragged back in, I'll really quit some day though. Otherwise...its hanging you know.
There's an easy way to drop FFXI for good.
Play another MMORPG. My current addiction is FFXIV. Story is 10 times better, and until you get to the current "end" of the main storyline, you will be busy doing stuff. I managed to get one job to 70, another 2 to 68, a couple to 50, and so on.
I only spend about 3-4 hours a day, about 3 days a week on it too. Too busy with other stuff, which most of it is being mold on the couch. I spend more time watching anime than I do playing FFXIV.
Maybe you should do that, help you get rid of that addiction. At least content gets updated a whole hell of a lot more than FFXI.