I tried Y2K once in 2022 and I hated everything I owned. The mistake was thinking the look was about showing skin or being loud — chunky belts, rhinestones, baby tees with words on them. It is not. The Korean version of Y2K, which is the version actually working in 2026, is much more restrained: low-rise jeans, a fitted tee, maybe a tiny shrug, kitten heels, one beaded necklace. That's the whole formula. No belt with a giant logo. No fur trim.
The difference between this looking good and this looking costume-y is doing one Y2K thing and then dressing the rest of the outfit like it's 2026. If your jeans are early-2000s low-rise, your shoes need to be a current shape. If you're in a bolero shrug, the rest of the outfit reads more Phoebe Philo than Britney.
This is also why I keep coming back to the same baby tee. It's the dial that controls how much Y2K the outfit gets. Crop it more, you're at a club. Pull it down, you're at brunch.