I would like to create a sims mod that allows children to become 5 star celebrities. However, i'm very new to modding can any more experienced modders guide me in this endeavor, like what tuning would i need to create such a mod any help would greatly be appreciated.

Anybody?

See this guide to learn the basics about XML Tuning; that's what you'll be doing. You can use the XML Extractor to get the files you need, or you can just use the Sims 4 Studio to search and edit the files all at once. While S4S is a bit more practical, it can't search inside the XMLs like a text editor like Notepad++ can.

You're gonna want to look at the files with "celebrity" or "fame" in the filename, and "age" or "YOUNGADULT" inside. Try starting with statistic/rankedStatistic_Fame. Sadly, you'll have to restart your game every time you want to test a change in your package file.

Ohhh! So it was your thread I was looking for. Here is a mod that does this already, enjoy (free of course)!
https://www.patreon.com/posts/32004495

Oh thanks for that link, i wasn't aware that a mod like this already existed . This thread can now be closed