Dealing with a "psychobrother" can be challenging, as the term suggests that the individual may have some psychological or emotional issues. Here are a few strategies that may help:

  1. Set boundaries: It's important to establish clear boundaries with your brother and communicate them to him. Let him know what you are willing to tolerate and what you are not.

  2. Seek support: It's important to take care of yourself emotionally and mentally when dealing with a difficult person. Consider talking to a therapist or counselor to help you cope with the situation.

  3. Avoid engaging in negative behavior: Try not to engage in negative or hostile behavior towards your brother. Responding in kind will only escalate the situation.

  4. Focus on the positive: Try to focus on the positive aspects of your relationship with your brother and try to find ways to strengthen your bond.

  5. Seek outside help: If your brother's behavior is causing significant problems in your life or is dangerous, consider seeking help from a professional. A therapist or counselor may be able to help you and your brother work through any underlying issues.

It's important to remember that you cannot change someone else's behavior, but you can change how you respond to it.