Sims 4 Confessions

My confession is that I'm so attached to one Sim that I created that I just can't seem to part ways with her. She's so special to me as I created her in CAS....and I rarely create my own Sims in CAS (only 3). The other two Sims I created in CAS were part of challenges (NSB & Legacy Challenge) & seeing them die was sad, but I got over it, as I really wanted to see the next generations thrive. BUT this one Sim....I don't want to see her as an elder nor do I want her to die. I have given her potions of youth to keep her as an Adult. & now that her kids are older...it's starting to look so unrealistic that her kids are almost as old as she is. So far I have her Save on hold until I figure out what to do. I'm either going to age her down to YA & start a new Save with her....OR just flag her for no aging or keep using potion of youths....but I don't think I'll ever let her age to elder & die. She's just too special to me. Which probably sounds crazy, since these are virtual characters & not real life.