I don't drink. I feel I won't be able to fix myself once I get addicted.
That's like saying I'll not eat chocolate in-case I get addicted to it. You can get addicted to anything, that makes your brain release dopamine.
Also, if you're that concerned I would recommend you do a substance abuse disorder test, it will show you how likely you actually are to become an addict.
http://www.drtepp.com/pdf/substance_abuse.pdf