I think that avoiding pleasurable (endorphin-producing) activities is the wrong way to go about it in the long run. Since eventually your addiction will become emotionally, physically and financially insupportable, you'll have to suffer through a long period of existence without natural endorphins. Then slowly re-train your brain. But you know that.
And I'm not sure that's where you're going with this. Your post actually got me thinking about why so many of my kicks have seemed easier than what others have experienced*. Until I suffered a severe back injury, I was an exercise addict. Running was my passion but I rode my bike everywhere, I hiked, I walked everywhere, I rock climbed, I did intense yoga 5x a week, pilates, weight-lifting, I swam, etc. (You get the point.

)That was my adult life (15+ years). Prior to that, I played aerobic competitive sports like cross country, soccer, basketball and soccer. And I worked out.
I wonder if the fact that my body was so accustomed to producing its own runners' highs that it was easier for it to snap back into production more quickly. When people ask for advice on kicking, I always include exercise as one of the critical factors of speeding a kick. Works for me at least and there's the documented reason that you want to speed your body's ability to produce its own endorphins. But maybe there's a correlation between the intensity of the kick and the amount and duration of intense physical exercise preceding the addiction. Basically, your brain's "ripped" before your addiction.
* There are many other factors but I'm not addressing them in this post.