Dear Luyanda, depending on which theoretical framework you choose you will describe and "understand" the social phenomenon in different, complementary ways. In your specific case you could choose an individual-centered framework (psychological traits, psychosocial factors, genetic predisposition...), a rather meso-social perspective (neighbourhood effects, school or family environment..) or even a structuralist macro-approach (alcohol policies, inequalities, class, race, gender,etc). In the intros of these articles maybe you get some inspiration:

The Role of Individual and Social Mediators in the Association Between Drug Consumption and Mental Health Among Adolescents in Barcelona

The urban environment of alcohol: a study on the availability, promotion and visibility of its use in the neighborhoods of Barcelona

Individual and contextual factors related to binge drinking among adolescents in Spain: a multilevel approach