Why can’t I get drunk? I don’t drink.

Weird question, yet it’s been bothering me. I am an introvert so I don’t even really go out much, I go to a party like once a year. But it’s the morning after a halloween party, one where I probably had like 10 or more shots with some pals. I only got less nervous, but not drunk. I started to feel kind of bad about it, so I spent most my time at the party tending to the fire and cleaning up Lol. I still had a lot of fun but, this has just been bothering me, especially since I don’t really drink alcohol. No hangover or anything either. Is this something I should be worried about? My mother drinks a lot if that has any effect on it. I do smoke weed though? If that also could have any effect on it? I have no clue. So hello reddit