Someone needs to start a support group or something
How I felt after finishing P5 is completely different from any other game I've played. It's my first Persona game, so maybe they all have that effect, but there's still something seriously special about it. Prolly something to do with the length; P5 is perhaps the longest it's taken me to finish a game, and it's quite a feat when considering the near-total lack of side content (fetch quests, kill X whatevers, etc). Sure, confidants and activities are technically optional, but in a different way - it's not about choosing whether or not you even want to do something, but rather choosing which specific things to prioritize. That the game can maintain such a long length with damn near every in-game day having value, but without the typical RPG padding impresses the hell out of me.
Persona 5 is your first Persona game?
Play Persona 4 / Persona 4 Golden right now. You'll no doubt get the same feeling after completing that as well.