Get a drink and lay down on a beach somewhere, because my work on earth apparently is already done.

destroy capitalism >:3

Be very bad at my job... (my internal mental image is very "the Screwtape letters" coded)

use my newfound powers to make quotidian tasks slightly less difficult 😌

Arson and cause more chaos

Posess all fascists and nazis and turn them into femboys

Annoy the HECK out of Doomguy. Like the Scythe 2 Evil Marine, or the Cyberdemon in the wow.wad pit, or whatever enemy in the new Doom games people hate most (idk because I haven't played them)