Pack your things. Fly to another random place on Earth. Roll a dice if you have to. Figure it out from there. Your only mission - screw the rest of the world and enjoy yourself.
If you are anxious about permission. Here, I give it to you.
Here's a piece of advice I tell myself every time I feel like you do: "Forget all preconceptions. About myself, about the world. Just wing it. If everything falls about, let it fall apart. Screw it. I'm a man, I'll live. Fun. Remember, fun."
You don't want to kill yourself. You want to kill your idea of who you are. Let the idea of you die, but you? You live and go on living.