The Mistress of the Household Divorced Him Without Hesitation, and His Whole Family Regretted It

[Completed, no golden finger] Si Niannian accidentally transmigrates into a book as the vicious supporting character in a sweet romance. Now middle-aged, she has elders to care for and children to raise, yet her children disrespect her, her husband doesn't love her, and her mother-in-law can't stand her. Her husband's concubine lives more luxuriously than she does, the legal wife, and even the concubine's children are better than hers. Si Niannian... The original owner put up with all that? She's the ultimate ninja turtle, enduring everything! Her children disrespect her? No problem! Mom will teach you how to behave! Her husband doesn't love her? No problem! I've got a hefty dowry, and I'll date a handsome young man every month without missing a beat! Her mother-in-law can't stand her? No problem! I may not have many talents, but I'm a first-rate irritant! Si Niannian has just one philosophy: If you go crazy enough, even the Earth has to revolve around you! After all, you only live once. As long as you're comfortable, who cares what happens to anyone else? After making her fortune and divorcing, Si Niannian just wants to lie flat. She never expected her brainless playboy of an eldest son to suddenly become a prince, her love-struck second daughter to become the model young lady of the capital, and her youngest son to rise to the highest ranks. Si Niannian gets to lie flat ahead of schedule! And in the end, the new emperor treats her like a treasure every single day!