How to find a seat in Shinkansen?

Okay, so picture this: I'm whizzing through the Shinkansen gates, my IC card or QR code doing its magic. No paper ticket thunk this time! Just this "Seat Information" thingy on my phone. It's pretty cool, actually, once you get used to it. At first, though? I was definitely like, "Okay, where's my train name? Departure time? Arrival time? (Super important, right?!) And for the love of all that is holy, WHERE IS MY SEAT?!" Like, seriously, that's the first thing I'd be looking for! I remember one time in Tokyo Station, I was heading to Kyoto, and I was so flustered trying to find platform 14 and decipher my seat info on my phone at the same time. Almost missed the train! You know that feeling, right? Everything's a blur of announcements and people rushing past. Anyway, once I found the right info (car number, seat number - the whole shebang!), it was smooth sailing. They usually show it clearly, thankfully. I mean, imagine the chaos if they didn't! But yeah, that initial moment of "where's my seat?!" is always a bit nerve-wracking, even now. You'd think I'd be used to it by now!