I have gotten every achievement and completed every desire… where now?

I have opened every end portal (20), I have made the end into the overworld, I made a massive lab with every mob, I made a giant trading hall, all the farms you could dream of, I drained an ocean monument, made a giant nether castle, an iron city… what next? Keep in mind, I am not a good builder, I just like doing big projects. 👍