All I can say is get used to it.
There are 2 main types of game development in this market, artist driven and story driven.
Your artist driven tends to have higher and more consistent quality art but more often than not, the gaming or story aspect keeps changing direction as your highly creative individual pursues whatever new shiny catches their attention. They also tend to go back and improve or change previous output which can create bugs like you don't wanna believe, that plus having to restart the game, (sound familiar?).
A story driven game tends to use storyboards and program managers. The end result is that they tend to hit their update schedules more regularly with fewer bugs. They still need quality art though and I've seen several of these that failed when their artist bailed or when they changed artists multiple times.
In either case, games that spend 3 or 4 or more years in development are driven by motivated, creative people. If they weren't, those games tend to get abandoned within the first or second year.
It may drive the fans crazy, . . . . but I notice that you're still here, . . . .
