I have an addictive personality. I cannot do anything to a moderate extent. I either obsess with the given thing/activity until my body, or manipulating external factors physically prohibit me from doing it.
I took up running last summer. However, instead of running twice, or 3 times a week, I ran everyday, 12km a day for 10 weeks. This ended when I physically could not continue. Even when I wasn't running I was thinking about it. If there was a reason I couldn't go (which happened on two days) I would spent that day depressed, and no matter how much I ran the rest of the week I simply could not forgive myself that I had missed that day. It was a crazy period.
However, I don't do that anymore. I realised, and I have spent a lot of time concentrating on not taking things so obsessively. There are some activities I simply do not do anymore (No, not that activity you sicko's) as I know I could not do it moderately.
I was wondering if any of you have ever been addicted to anything, be it physical or mental. Any of you have/had similar obsessive tendencies? How do you deal with them, or how did you solve/control them.