@_Manou1996_ Uninstalling and reinstalling the game has nothing to do with this. Launching the game will create a "The Sims 4" folder, not a symbolic link, in Documents > Electronic Arts. If the game doesn't even open, please let me know.
Otherwise, do you remember where you stored your data, for example on an external drive or on a secondary internal drive? If you're not sure, you can search your computer. Open a File Explorer window, click This PC in the left panel, and enter Slot_ in the search field in the upper-right corner. This should find any saves on your computer. If you do find one that's not in Documents > Electronic Arts > The Sims 4, please click on it and then click "Open file location," which will take you to where that file is. List the full file path here, which you can see in the address bar above the list of files and folders.
You can also search any external drives you have, either in the same way as above (but click on the drive's name instead of "This PC"), or just by looking through the drive's folders.