I got new suit pants that aren't way too big, a blazer and shirt, a new bag and grown-up shoes (they are even sort of not uncomfortable) and everything! I don't really feel like myself wearing any of it, except the bag, but I'm getting used to it, I guess. Needed the blazer and pants/suit because we need to dress "properly" when visiting companies in Japan, apparently. The blazer kind of makes my boobs look huge, which is weird, but I may just not be used to it. Best part was almost that my parents paid for almost all of this (excluding the shoes, but including the $140 bag, which I thought was way too expensive), which was pretty cool of them. It's odd how willing they suddenly are to pay for a bunch of stuff now that I don't live at home.
Picture of the bag and shoes!

I kind would've preferred a different strap on the bag, but this one was actually surprisingly comfortable, and I love that it's a very "basic" bag, but looks nice. And the shoes look weird here, but they're completely black and not that weird irl, and even have a bit of heel.
ETA: I forgot to post my question. What kind of shirt do you think would look..well, professional, but not like you're trying too hard, under a suit on a girl who is 22, but looks way younger? We're visiting companies, but mostly just for tours and stuff, so yeah. I have a couple of nice-looking "proper" shirts with collars and all that (and I really like them, but I have no idea what the English term to specifiy that kind is), but then there's the option of other kinds of tops, and I'm just not sure.