How can I get drunk?

Okay this is going to sound a bit weird, but I have nowhere else to look, how can I get drunk? I am 22M and 300lbs rugby player, and I’ve been trying to get drunk for many years now. The only time I have been drunk is when I drank an entire 750ml bottle of vodka in under an hour, and even then I didn’t have a hangover the next day, I remembered everything from the night too. Can I have any tips to get drunk? I have had about 7 shots of absinthe in under an hour and felt perfectly fine, I do not know why I am like this, I truly just want to have fun and relax with my friends but in order to do that, I need to spend all my time and money drinking in order to feel the same buzz that they feel with 2 or 3 shots.

Of course I could just not drink, but I am just looking to see if there is any advice for alcohol or if I should truly give up trying to experience it the same as my friends.