I am 1 year clean, and although I am mostly free of temptation, I can be watching a television show that has drug use and get an overwhelming craving, or pass by a store, or be in a bar. Anywhere I once associated with the drug. Sometimes my mind just wanders.
You are not alone! It is especially difficult because with drug use we build strong associations, when we encounter these places or things, it often brings on a strong desire to use.
Over time the associations lessen, and as far as I am aware, the desire to use becomes much easier to control. Congrats on your 2 years!