The Importance of Intent in Magic

Hoid may not have planned for this curse to have lasted a few years, he says in that quote. He visited the sorceress a few years ago, meaning he has been at diminished mental capacity for multiple years. And we don't necessarily know if that was the plan. Even though he planned for it, he's finding himself in a situation that is unexpectedthat he doesn't know how he's going to get out of.