In this guide, you will find how to stop wants from changing after a while in The Sims 4. You can pin more than one wants if you want.
The wants suddenly disappear sometimes in Sims 4 when you want to complete it. So to pin the wants, you will need to click on the small pin icon. It will turn green, and then the want will not disappear again. After that, you can complete your want that disappeared.
