I'm bored in Minecraft! What should I do?

I have nearly everything you could possibly want or need. I have three holes that go down to bedrock, a climbable pillar that goes up to layer 256 (With two landings), I live in a village, I have wolves, every possible farm but pumpkin and carrot, the Dragon Egg, two wither skeleton skulls, a lot of diamonds, quite a few emeralds, a lot of flat terrain, a flattened-out mountain top, I know where a HUGE Nether Fortress is, really good armor and tools, and I've explored at least a thousand blocks in every direction away from my house. I Really don't want to start another Survival world, I guess I'm attached to this one. I've brewed multiple potions and found three Ocean Monuments too. A few of the only things I don't have is… Cats. I want cats but I don't really want to explore too much. I foolishly made the biome size Way too big. Something like six or seven. Maybe eight. I forgot to mention, I also have a bunny and a horse xD Also a chicken farm… With hoppers.

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