Changing the style

Hi guys, I've wondering, since I'm not yet on T (hopefuly soon) changing my clothes by buying more basic and plain will be useful to pass a little older at least? I like my current clothes, they're not femenine at all just they have draws and stuff that maybe makes people think im a kid (none of them are anime). I'm just tired of being treat like a kid, at least the other day a woman thought I was 18! I'm 19.