As with any "addiction" you have to want to quit. If not then forget it.
I took a "sabbatical" for six months and found it just a little too easy. The reason was that I had a more fulfilling substitute. If you can't fulfil that void in other ways then it would be tough, as you will possibly weaken at some point. Quitting the boards was another story ( possibly that void was not being fulfilled entirely or possibly I just missed all you wackos - I didn't really want to quit the boards, I suppose ) I think the boards only tend to "feed" the hobby while you are actually in the cycle. At least , in my case.
As Rev says, it does get easier and complete abstinence is the key. Getting over the first weeks is the hardest part, but once you break that cycle you'll be surprised how easy it can get.
A few months back I lost control and I justified it, as we tend to do, by telling myself I won't have as much time in the upcoming months. So, I gained control partly because I was just too fuckin busy, but I knew it would break the cycle and hence my reason for going on a rampage previous to that. ( almost every second day & my visa is still hurting from it )
You really have to analyse what you expect from this "hobby" and ask yourself if it is, in fact, fulfilling your needs. ( maybe you are continually searching for something you actually cannot attain through hobbyings "quick fixes" ) Also, ask yourself if it's possibly a way of "escaping" other issues, that are missing in your life or harder to tackle. I believe in many cases it is. In my case it partly is.
I do see how it's an addiction in that the more fixes you get, the higher the level you become accustomed to and crave. As others said, cutting down will not work, if you are, in fact, in an "addictive cycle". Upon and / or after each visit, you experience the high, then the withdrawal, until you get your next fix. ( unless, in this case, you burn out ) I do think that an obsession is more accurate, as quitting an actual substance addiction ( physical & psychological ) that has control of you is sheer hell ( ie alcohol, tobacco, crack etc )
Everyone is different, so what applies to one may not be apply for you. It is possible to keep things in balance, but there's always the chance of it escalating again.
Anyway, good luck