I am not in any place to call you an alcholic, but I can say that you might be heading that way. Being an alcholic does not only mean that you drink 7 days a week for the time you get up until the time you go to bed. Binge drinking can also lead to alcoholism. If you are at a point you must drink and you are craving it then you might be wise to seek help to keep you from crossing the line. If not what you think that is now all in fun will reach a point that is no longer having fun, you are completely addicted.
I think you are too young to be an alcohol. When you get older, it seems you certainly might lean that way. Most alcoholics drnk to get drunk and oh.. the pain in the morning and the ability to not function. Are you avoiding issues in life by drinkng?
you do say you have been drinking about 3 years your folks allow this? i do guess that is not the real problem here i would say you may think you are having fun give it some time and your body will tell you lots of things if you cant nip it in the bud now. it will drag you down if you can quit i think that you will have more fun and be in better health in mind and body i do wish you lots of luck you will need it if you keep it up most people drink to escape reality and you are to young for that . this is just my opion jo