hi jinn
it is of course possible to use drugs recreationally, and not become an addict… in the exact same way a person can enjoy alcohol or gambling etc without becoming addicted.
pretty much anyone can lose control of a particular vice and fall into addiction, certain substances (cocaine/crack cocaine/nicotine) are considered highly addictive though.
a lot of addicts say they are completely in control, despite fulfilling all the criteria to consider them an addict, denial allows them to carry on their destructive actions and they often believe it themselves.
does that make sense?