Game Won't Launch

I can't find a MODS folder, and have seemingly tried everything else!

@1Lorna  You'll need to launch the game once in order to create the folder.  If that's not the issue, here's where to look for the folder:

https://sims4.crinrict.com/eng/2018/07/how-to-find-your-user-folder/

thank you so much helped me a lot, I couldn't find anything to help me but this was my problem. you made my day

My mods folder is still intact for the new sims 4 folder with all my custom content inside. But when I launch none of it is there. What do I do?

ranart  Have you confirmed that mods and custom content are enabled in-game; and that your mods are in the Sims 4 folder the game is currently reading?  Here's how to find it:

https://sims4.crinrict.com/eng/2018/07/how-to-find-your-user-folder/

If that doesn't help, remove the Mods folder, start the game to create a new one, and move one mod to the new folder, but nothing else.  Let me know whether it works.

I did that but my game didn’t create a new mods folder. 

ranart  Then you're not looking in the correct location.  Please use the link I provided earlier to find your user folder.