Hi fernie, YES addiction is really real. A large percentage of The Dark Side discussion is pertaining to people's problems with addictions so just have a browse of some of the threads in TDS to get an idea of the difficulties that many people go through with addiction.
You are still very young, and it's very common for young people to think they are invincible and that certain bad things won't happen to them (that is not a criticism of
you by the way, it's just really common that adolescents tend to think this way

). Please continue to do your research on drugs, have a good read of lots of threads on Bluelight which pertain to the drugs you are taking, and make EDUCATED CHOICES about your drug use. Never assume that addiction can't/won't happen to you.....because then it probably will
Addiction largely depends on how much and how frequently you use a drug. If you only use a particular drug fairly infrequently, e.g. once every few months or even once every few weeks (depending on the substance), it's unlikely that you're going to get addicted to that substance. You have to be really careful though, even if your usage of a particular drug increases gradually you can still slowly become addicted to it, over a matter of years. If you begin to require MORE of a drug at any one time to get the same effects you used to get off a smaller dose, or if you start using a particular drug more frequently, the warning bells should be ringing and you should consider cutting back your use of that substance.
Dependancy is also a different term which might need clarification. Dependancy on a substance is when you NEED to have it, in order to avoid having withdrawal symptoms. For example, an alcoholic who is dependant on alcohol every day will suffer tremors and possibly even life-threatening seizures if they don't drink. But someone has to have been drinking copious amounts of alcohol every day for a prolonged period of time to have a reaction like that.
So if you only use drugs every so often, and if you mix up your usage e.g. ecstacy one weekend, weed the next weekend, shrooms on a different weekend etc, you are not going to become dependant on any of those substances.
Also, most of the drugs you listed actually
aren't very well-known for their addictive potentials. Ecstacy, nitrous, shrooms generally aren't majorly addictive.
Weed is mildly to moderately addictive so be wary of that.
Meth, as you know can be
highly addictive so please be careful with that one especially.
Opiates e.g. Vicodin are also highly addictive so please try to limit your usage of anything that falls in to the opiate category.
Vicodin also contains acetaminophen which can cause irreversible liver damage if taken in high doses or for prolonged periods of time.
Lastly, if you have a good support system of friends and relatives, please talk to them if you feel that your drug use is getting out of control. I personally believe that it's fine to experiment with drugs but like I said, just make sure you do all your research and make educated decisions about what you take and how much. That is what this whole site is here for, after all!
Be safe and sensible
