Hello, During A Period Of About 9 Months When I

Hello, during a period of about 9 months when I was 16 years old, I drank about 1 or 2 50cl about 5.6% beer cans every week, and once I also drank one glass of 40% vodka during this period. I've stayed abstinent from alcohol since, and I was just wondering if it's possible to estimate how major the damage is, and if it's possible for some of the cognitive functions to recover.