Bugs... Bugs everywhere !!

Tashigi_nee-sama​  Some of these are known issues, for example:

Drag No Longer Working for several objects | EA Forums - 12296987

The prompt about skipping sounds like this:

Adults/teens/children at work/school on reload trying to skip work/school | EA Forums - 12300531

For the DLC not appearing, try clearing the EA App's cache and repairing the game, in that order.

https://help.ea.com/en-us/help/faq/clear-cache-to-fix-problems-with-your-games/

I can try to help with the tech issues, but I don't deal with in-game issues like objects not working or a sim not be able to go to school or work.  Game issues should be posted in the Gameplay forum, and bug reports in the Bugs forum.

If you'd like help with any technical issues, 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.