A normal stick may not look like a good weapon, but it is well suited as an improvised wand. One slime isn't a dangerous enemy for a witch if she not tries to attack it with physical means. You as a clever witch would not try to beat it without magic... right?
You throw a cute little fireball against it and the slime dies without a fight.
Now you have a little bit of time to look around. As said the room is nearly empty. (I would never lie to you. Trust me.) There are only the weapons a witch like you would never use. You have to reason to stay here. That's why you leave the room without turning back.
This place seems to be a demonic labyrinth. As a witch, you know stuff like this. You better be careful not to fall into any trap.
There are two doors not far from your starting place.