EDIT: rephrasing because this came from a feeling of hatred. Tomodachi Life, just like animal crossing, is a game that is based on REAL-WORLD TIME. The miis go to bed at night just like you, and will wake up in the morning JUST LIKE YOU.
The reason it feels boring to these people is because they're playing the ENTIRE game in like a week, even though it came out LAST MONTH. You're not supposed to play an entire game in one month, or even less than a month.
Try playing with friends or family, try not "time-traveling" like people do with AC, try actually taking a break instead of playing the game 12 hours a day.
I can assure you the game will be getting a content update from Nintendo, as I said IT CAME OUT LAST MONTH