Welcome to SR!
I was a meth addict in my 20's. I quit meth in 1994 and have never touched it since. I did not drink or use for 4 years and I considered myself clean and sober. I started drinking occasionally because that was never my problem. Well, for a couple years I would occasionally overindulge but it was not a problem. Then the disease began to progress and I began to abuse alcohol and it was insidious. I have now been clean and sober again for 4 1/2 months. I am an alcoholic. To be honest, I am an addict, probably does not matter too much what substance. Give me a while, I would get addicted and abuse whatever substance I decided to pick up.
Today I am okay with that, happy actually. I am in recovery and healthier mentally, physically and spiritually than I have been in a decade. It is easier to just not use anything for me, than to try and moderate.
You have found a great forum. Keep reading!