Rookie mistake. You just had to go clear(vodka, gin, rum, tequila) and then add back water to offset. During much of my teen years, my parents’ friends that would come over usually needed at least a 3rd or 4th cocktail to feel anything.
Still got really sick though once trying to make a Mudslide one time. I’ve thrown up and made up with every spirit out there. But to this day, Kahlua and I require a DMZ. Also found an old bottle of Canadian Mist in the back of the closet once, so like you, was out on any whiskey for years after that monstrosity.