It literally causes me anxiety when it takes that long to beat something. Invariably something new and interesting comes out, or something happens in my life where I can't really play for a month, or whatever. I mean Horizon Forbidden West probably took me 2 months to beat, and then another month-ish to platinum. If I didn't absolutely love that universe and fall in with the Discord server I don't think I could have done it.
I mean I know it's all in my head. I just grew up where you could beat a game 100% in one playthrough and it didn't feel like you had to commit a substantial chunk of your life to it. Even though I've been playing for well over three decades now, I have never adjusted.