How can some drink forever while others (like me) break quickly?

I’m many years in university and I always wonder how my fellow students and friends can go on drinking hard every week, 1-2 times for months over years. They drink every weekend and throughout the week. Still after years they all got clear healthy skin and hair, are sharp between the ears and in very good health. Women and men. Same age

One friend and I also joined a group of students in our house in this ritual. Party every week, drink meetings throughout the week. After like 6 months my health was fucked. My brain felt like puree. My skin is notability worse. My hair is slightly worse too. I was ill multiple times in that period.

I eat healthy. Cook fresh myself. The people I know eat junk food and prepared noodles all the time.

I did two blood tests and my markers for liver and kidney damage are elevated. Minerals and vitamins are also down.

So how come some can easily take alcohol forever without issues while people like me break quickly. Who here is either of those persons? I haven’t been drinking more than them.