This game is less and less enjoyable for me
I am fairly new to this game, so forgive me if I don’t actually understand the specifics of what you are talking about. I will just address the topic title rather than the individual points of your post:
The longer you play a game, the more likely you will get bored with it. This is for all games. You know the game too well, you fall into a routine, the game changes too much… In all cases, you might find yourself missing the initial excitement you used to feel playing the game.
Know that this is normal. It’s unreasonable to expect one game to satisfy your every need. It’s important that you try other games and put less weight on one game. It is in the game’s best interest to convince you that there’s only one game for you, but it is in your best interest to explore your options and don’t let yourself get tied down.
If you find the game isn’t as much fun for you as it once was, don’t attempt to change the game. Just try another game.
Note: This may or may not also apply to relationships.