Why do I act mean without meaning to 😭

My comfort face naturally looks kinda mean/angry even when I’m totally fine. And whenever I see boys my behavior just switches automatically, I start giving side eyes and silently judging them for no reason 😭 I even told my friends I might get a bf in a few months but honestly idk how that’s gonna happen when I act like this 💀 Plus most boys around my area act all wannabe gangsta lol so maybe that’s part of it?? Is this normal or am I just unintentionally intimidating 😭