I need help saving my game!!

@mmboba, it depends on how you want to play.  @jpkarlsen explained how it works very well! 🙂But there are advantages and disadvantages for playing each way.  

By playing rotationally, all your Sim's relationships will remain intact, even if a member of a household moves out.  You will have a more dynamic gameplay experience.🙌 (But you will miss out on witnessing many of their milestones and you have less control.😢  

By playing with each household in its own Save Game file, you will have more control over your Sims, and you won't miss any major milestones in their lives.🙌 However, if a Sim moves out of the household you will no longer play with them ☹️  (you can start a new save game file from that point by playing the Sim that moved out and choosing to save their game with the "Save As... " option and naming it something different, but then you have 2 separate saves, each focused on different parts of the family.) 

I would try both and see what works best for you! 🙌  One big save file can be difficult to handle if you have a lot of Sims.😞  But you might not want to go as extreme in the opposite direction either (like I do) and have each household a separate save.🤓  What I think most do is to have several different save game files but have several different families in each one that you can rotate between.🙂  But again, play around and see what you like! 🥳

Update:  I forgot to mention that if you have the Discover University, it is best if you don't play rotationally while your university Sim is at college.😞 Just stick with playing that Sim until they graduate, and then you can continue playing rotationally if you wish! 😉