Okay, so like, binge drinking on weekends is still a risk factor for liver disease. The liver is an amazing organ, unlike the other organs, it can regenerate itself. If you were to cut out all drinking entirely, your liver would be much happier. Drinking long term in one so young has already increased your risk for liver disease. Infection with hepatitis, drug use and the like can also increase your risk factors. Since you are still in your late teens, and you still drink, you officially have a drinking problem. Your liver may be okay now, but keep it up and it won't be. Why not look into a treatment program to deal with the underlying issues for your drinking. And limit your drinks to no more than 2 per week, or one glass of wine per day.
End state liver disease is really an UGLY way to die, believe me, I've seen it all too often.