why does it take so long for me to get drunk?

i’m a 27 y/o female, 5’2 and weigh around 130lbs. i’ve never been a big drinker (started having a heart problem as a teenager so wouldn’t drink) and can probably remember every time i’ve gotten drunk.

i also don’t love the taste of alcohol. sometimes, when i see my friends having such a good time, i want to get tipsy or drunk with them. tonight for example, i had 1 cider, 5 rum and cokes and 2 tequila shots and didn’t even get to the tipsy stage.

i’ve always been like this and most people don’t believe me. it sucks, it’s so expensive to even TRY to get drunk. anyone else?