My sims 4 is crashing once I go to open my world. Please help!

cs_110574  Your computer has enough memory for Sims 4.  It does not necessarily have enough memory for Sims 4 and everything else running in the background.  That is clear from the size and usage of the page file, as listed in your dxdiag:

  Page File: 11240MB used, 2502MB available

The page file is where the processor stores data that would normally be in RAM but doesn't fit.  Almost all computers do this to some extent, but the important details here are that the "used" space is large and the "available" space is small, meaning that when you ran the dxdiag, most of your computer's RAM was in use as well as 11 GB of the page file, and there wasn't room to push much more data to the page file.  Then when Sims 4 starts and needs resources of its own, those resources may not be available.

You could artificially increase the page file size, and here's how (option three):

https://www.elevenforum.com/t/manage-virtual-memory-paging-file-in-windows-11.8618/

But I'd also be curious to know whether some apps were starting with Windows and running in the background without your being aware.  You can check the Task Manager's Startup list to find out—apps like Edge and Teams may be opening with Windows, and perhaps a few other apps, and possibly updaters for apps that you could update manually when you wanted.  Point is, none of these need to be running when you're not using them, and disabling them from starting automatically would free up memory for other tasks, including Sims 4.