I can't get drunk anymore. Can't feel a buzz.

the main reason I stopped was because the alcohol effects stopped.i can't get drunk anymore. I noticed this over a bachelor/Bachelorette party weekend. I legitimately tried to get black out drunk and couldn't. I basically felt sober the entire time. in 5 hours I drank an entire bottle of jack, took many shots of crown apple, and jello shots too. literally felt sober. couldn't get buzzed. I'm ashamed I drank that much.