If you are smoking it everyday, and you feel that is the required dosage of treating your ADD in self-medicating term, then I would most certainly say you are addicted. Not to sound like an asshole, but methamphetamine is an incredibly powerful drug, as are its negative side effects; mentally, that is.
Although stimulants are used to treat ADD, I believe that since, when prescribed, they are taken orally and in a very low dosage compared to a recreational dose, then the negative effects are much more benign. I have never heard of Desoxyn (prescription methamphetamine) being prescribed to any of my friends with ADD. That's just my experience, but I think you'll have an easier chance of obtaining a prescription for that if you are trying treat morbid obesity or severe narcolepsy.
When you smoke meth, I've been told bioavailablity is around 92%. That is quite high compared to orally taken, which I am sure is much lower. (Don't know the actual number.) But when you shoot or smoke meth every day, well, I mean you have to sleep sometime. And that's not gonna be easy if you're rolling bowls 4 to 5 times a day. You can't keep a stable lifestyle by staying up for a couple days, and having one day to crash. I have seen some people try this, and meth psychosis seems to kick in A LOT. I believe sleep deprivation plays one of the largest parts in meth psychosis.
If you are somehow sleeping everyday, well when you wake up you have to be coming down right? Your brain will still be depleted of dopamine and norep. So you will still NEED meth to substitute the continuing depletion of neurotransmitters that take more than one night of sleep and 1-2 small meals a day to replenish. And as you continue using, tolerance will develop requiring higher amounts to reach the desired effects. The euphoric effects will be severely lessened the more you smoke, QUICKLY.
And I don't think I need to tell you that that is a healthy way of medicating at all.
Smoking meth or shooting meth is not meant to be a way of treatment in my opinion, because they simply get you TOO HIGH and TOO SPUN to correctly function, even if you think you are. It's just a matter of the fact that they are much more powerful methods of administration and obviously exceed needed medicinal benefits.
Putting a little bit into your coffee in the morning would be a safer way in my opinion, and also oral routes always last longer as well.
However, I would still advise to take prescribed medications from pharm. companies because you know they have no impurities/questionable adulterants, you have a steady supply (the pharmacy will be a 10 to 15 minute wait and most likely will always give you your script on time, if you don't abuse it as opposed to dealers who are usually high themselves, and on the meth life calender, who have a shaky consistency with supply) and finally, the legal ramifications of being caught with methamphetamine or meth paraphernalia like a peelo.
Please try to use prescribed scripts, and if you must, try to make smoking only a thing for enjoyment every once in awhile. I don't think I have met a single tweaker who does meth everyday and doesn't have some sort of tumultuous or unstable lifestyle. Please try the safer route.
Lastly, I'm not ragging on you or lecturing you, at least not trying to. My knowledge is limited to hobbyist and I myself am close to coming down off a 2 day binge. So I'm not judging you, I just simply think that this is not at all a safe way of medicating ADD.
I hope you don't experience any major problems, and I hope your treatment goes well. I can completely empathize with your feelings. Be safe.