Schedule Festivals Yourself  

Schedule Festivals Yourself is a mod for The Sims 4 that allows you to disable all festivals and then re-add them using the Seasons holiday system. This mod supports festivals from different packs, such as City Living, Island Living, Snowy Escape, Cottage Living, and High School Years.

With this mod, you can schedule festivals to appear on any day and season you want, or you can disable them by not scheduling them at all. However, it's important to note that this mod requires the Seasons expansion pack to work properly. Additionally, you'll need at least one pack that contains festivals for this mod to be useful.

If you have the High School Years expansion pack installed, this mod also changes how the Chess and Computer Team Science Fairs work. These events are now scheduled through the holiday system, like other festivals, instead of through the phone.

Like most holiday traditions in The Sims, Sims can "Love" or "Ignore" them based on their traits. If a Sim "Ignores" the tradition, it doesn't prevent the festival from appearing. Instead, it just means that they won't receive any holiday points for it.