There are quite a lot of characters nowadays of the "literally me" loser introvert archetype. And I do enjoy them quite a bit, even if they're not my most favorite trope. But out of all of them, Otobe-san has got to be the one I reeeally felt on a spiritual level, terrifyingly so.
Berating myself in my mind and then quickly shutting it down, trying not to spiral. Overthinking things and assuming to the point I forget to even reply to them. Agonizing over (often imaginary) things like "AARGH WHY DID I DO THAT?! I REALLY SHOULDN'T HAVE SAID THAT..." before quickly going into acceptance "well it's over for me anyways, might as well forget it".
Orrr trying to help someone or make a point while also not being confident enough in yourself, so you just end it off with "...or something like that.".
Even if I'm definitely better now, and in a process of breaking out of my introverted shell, I can still very much relate to her simply by remembering how I was in the past...
A true "literally me" moment... or something like that.