The scriptures has helped me in one way i can hardly forget. I never used to take alcohol until I met set of friends in school who influenced me badly almost turning me into a drunkard until I met a scripture in proverbs.
Prov 31:4-6
4 Not for kings, O Lemuel, Not for kings, to drink wine, And for princes a desire of strong drink.
5 Lest he drink, and forget the decree, And change the judgment of any of the sons of affliction.
6 Give strong drink to the perishing
YLT
That was the turning point for me.
Though I shared with my friends, I hate to say it is yet to make them switch as i did.