I'm planning to kill my friends with fire.
Why are you planning on doing something so awful? Why are you being so violent?
Because I want to destroy everything.
Killing your friends is wrong. They trust you and you should not betray them like this.
No one should be trusted.
If you have feeling like you want to hurt other or destroy things you should seek professional help. You can work through you issues with them and vent your frustrations.