How should I do if I want to kill someone accidently

Calm down, don't worry. You've been a psyche patient for six years. Did you hurt someone during these years? No, you didn't. Sometimes people might be stuck with some terrible thoughts. Why? 'cos they have too much time to think about them. Try to keep yourself busy and find some friends to communicate with them. Don't mind that your are a psyche patient. Tell them about your disease, and perhaps they can help you through your dilemma. I am a patient too. Sometimes I feel very depressed and frustrated. Then I try to do something, and then I forget my pain and cheer up again. If you can't find someone who can talk to you. Let me be your friend. I am willing to help you.