Sims 4 dedeathify spell explained

Hi @JamesBlock1996 - Sounds like you had a happy spellcaster accident! 🙂 🧙

I don't think there's a way to make the curse last longer. Technically, there's an increased chance of a spell failing if you are in the overcharge danger area. You can also backfire spells pretty easily if you have a lower level than the spell requires. Since dedeathify is an Acolyte spell, you could try to reset your perk points and only choose 1 perk to be at Neophyte level. I'm sure there are others around here who can give more details about the spells and curses.

But - there are certainly many choices to enjoy playing a ghost. The most obvious would be to kill off your sim - you need to have at least one other sim in your household though! Don't kill your sim with no one there to witness it - the game will end and you will not get to play as a ghost. The other sim in the household will need to place the ghost's urn/gravestone, choose "Strengthen <sim>'s connection to the physical world" and wait about a week before the ghost starts showing up in the household. Then, you can befriend the ghost and ask them to join the household. 

You can also enter cheats to turn a sim into a ghost, and later use a cheat to turn them back into a living sim. I just tested this on a single sim household, and it worked perfectly. The sim was immediately turned into a ghost and the game didn't end, so you can play the ghost as a single household. Removing the trait immediately turned them back into a living sim. You have to choose the exact type of death to use, and to turn them back, use the same trait. This is how I turned my sim into one who had died from electrocution:

You can find all the traits plus a lot more information in Carl's Guide to Ghosts

Happy Simming!