I'm only in Year 3 currently, so there's enough of a buffer that I won't get bored working my way through the story. But I've never been a fan of grinding in video games, it's a cheap tactic to artificially extend the length of time you spend playing a game while achieving very little in the process. I've heard of other modders finding ways to edit those values, but I don't know if it's just a rumor or if it's fake or something.