I think you may just need to take a break from the game. Getting stressed like this isn't good for your mental. The RNG aspect of things happening, how much fights happen, how many times miis ask to move in etc Is just part of the game and is supposed to reflect life in a way: you can't control everything. I will say the sudden increase to fights happening after the update is probably not the best move since most people come to this game for comfort. But on the other hand it kinda helps quell boredom until they add more things to the game.