19 male. Need help

Hi I am looking for advice. I am 19 years old and in college. For the past few years I have had an alcohol issue. I have been drinking quite heavily (daily) for 1.5 years ish. I honestly couldn’t tell you what started this. I am a very relaxed, non anxious person with a good upbringing. I know that this is an issue that I must deal with. I recently got test results after an annual doctor appointment saying that my liver wasn’t great. I’ve been ignoring her calls out of fear. I have close family who have been struggling with addiction. I don’t want to overwhelm family with this, and honestly I am quite embarrassed of this issue. I am at a loss right now. I am incredibly social, no one knows the extent of my drinking. I have kept my grades up, as usual. I haven’t pulled away from people, so dropping this information on my family would be shocking. I’m sorry for the long post but I’m just going from my head. Any questions or recommendations are welcomed.