You'll be alright.
As SliK said, I think I would just start smoking marijuana instead of going cold turkey. While that may seem like switching to something that is more or less the same, there are some key differences. Obviously, the health issues that come with these synthetic cannabinoids that haven't been tested very much at all is a topic of concern. Everyone is pretty much like a bunch of canaries in the coal mine, waiting to see what awful side effects will arise as the years go on. The effects that
are known about some of the more well-known chemicals aren't good, because if they were
safe drugs, they would have been pushed through the FDA and marketed as a high-profit medicine similar to Marinol. I'm not talking about the anxiety and dependence, I'm thinking more along the lines of metabolites of the drugs breaking down into carcinogens.
Beyond that, THC and the synthetic cannabinoids--while sharing a very similar pharmacological action in the way of binding to CB1 and CB2 receptors--don't interact with the body in the same way. Most of the synthetics differ from THC in the way that they aren't partial agonists, they're full agonists. This means that your body
does develop some sort of dependence on them after extended use, in a way that doesn't really present itself when using natural THC. This is why people seem to have such a hard time quitting it once they use it for a long time.
That being said, you'll be fine. It's mostly a mental addiction; speaking as someone that has had some experience with opioid dependence, mental addictions are manageable fairly quickly once your mind is made up. You'll experience some dysphoria, but you won't get the type of physical symptoms that people deal with when they kick opiates, or god forbid benzodiazepines.
You should smoke some marijuana to allow your body chemistry to readjust to producing more endocannabinoids before you remove a strong cannabinoid agonist completely from your routine though. Once you get acclimated to that, quitting marijuana (if you choose to) will be a walk in the park, because your body will have gotten used to a partial agonist, and won't be fully dependent on it.
Good luck man.
