>>1228367(I'm gonna be that asshole but…
god i wish that were me)
In all seriousness though, from my teenage through mid-20s years, I was thin "no matter what I ate", but it turns out I was burning way more calories and consuming less than I thought I was. Like when I think about it, I was pretty active just by walking around at school or work, or goofing around with friends without intentionally exercising, I didn't eat much fat besides egg or cheese sometimes in my meals, and was a lightweight when I drank alcohol, which was rare.
I ended up gaining a bunch of weight in the past 2 years because I'm suddenly sedentary with a job where I'm stuck in a chair for 8 hours, I moved to a new city in a suburb without friends and don't really have walks with a "goal" anymore (no walking to a friends' house, or to class or to the store anymore) and I started drinking more during the pandemic (empty calories!) Frustrating stuff, but I'm having to retrain myself to actually exercise with the intention of losing weight now and stop stuffing my face with drinks.
(That ended up being a vent of my own kek)