Sims 4 crashes every time I open it.

909469​  Please delete the Bin folder where you installed ReShade in the first place.  That would be the folder inside [install location]\The Sims 4\Game.  Before you do this, close the EA App, then open the Task Manager and kill the EABackgroundService (under background processes) if it's still running.  Open the App and repair the game, again if you have already: Sims 4 > Manage > Repair.

If that doesn't help, please provide a dxdiag.  Click Windows key-R, enter dxdiag in the run box, wait for the scan to finish, click "Save all information," and save the file to your desktop.  From there, you can attach it to a reply using the paper clip (Attachment) icon included with the other formatting buttons.