Totally get that. But if you want to read a novel that I think takes brilliant advantage of being written in first person, you should check out the tutorial is too hard.
While the translation is subpar, the writing is brilliant in my opinion as the often joking, light-hearted tone of the mc's stream of consciousness forms a stark contrast to the darker objective narration. It's a very interesting experience being inside the mc's head watching as mental illnesses start to take root and grow. It's almost never explicitly stated, though, leaving you to discover it on your own by observing the gaps and contradictions.
The reason I'm recommending this is because I've read a lot of novels that being in first person either detracted from the experience or added absolutely nothing. While I've also read ones that were better in first than they would have been in third, TTITH is the only one where the point of view is actually integral to the storytelling and would ruin the story if changed.
