@4siiri, I think by "scams" you might mean "cheats" . 🤔 If this is correct, then here is a good site that has the most popular cheats listed and explained. 🙂 https://www.carls-sims-4-guide.com/cheats.php
I don't know if a cheat for what you are asking for exists, but Carl's Sims 4 Guide linked above is a good place to start! 🙌
You can also adjust the lifespan of your Sims by going into the Options Menu in the upper right corner of the screen (looks like 3 dots).
Then there will be a selection of choices -- you will need to click on the Game Options button.
Then in the Game Options box, choose the 4th button down on the left side called Gameplay.
Then in the middle it will say Sim Lifespan, with a choice to choose Short, Normal, or Long. (in your case Long might be the best and short would be the worst.)
Finally click on the Apply Changes button in the bottom right corner of the box. (And click on the X button in the top right corner of the box to exit the menus.) 🙂
While making your Sims Lifespans longer wont give you more time in each day, it will give you a longer life so the children in the family won't grow up too fast and you can have more time to spend with them! ❤️ But part of the game is to find out what works best for you to maximize the time in your Sims' day to do the things you want them to do. 😉