ZxroNoxii Please let me know how the game looks with no GShade, no lighting mod, and no Simp4Sims Graphics Rules Overhaul file. When you've removed everything, delete the Bin folder where you'd put the GShade files and repair the game again. If the Bin folder won't delete, close the EA App (and Steam if you use it), and kill the EABackgroundService in the Task Manager; or restart your computer.
If the game looks normal after that, introduce one of your modifications at a time and test it alone. If the game still looks normal, add one more, and then one more. Let me know when things start to change.