I personally feel that mj is that one substance that is conflicting to look at as having a real affect on people the way that alcohol or other narcotics does. Between the medicinal talks and research and the states discussions on legalizing it, some have, some decriminalized, it's a complicated substance to address as far as using the 'addiction' label.
You aren't alone in this internal strife, but if nothing changes, nothing changes.
I read recently that after five years in recovery, relapse is unlikely.

It's not very relaxing when mapping out the next high in ones head when the previous high wore off.

Quitting is a choice and commitment.