The first step is to block the person who is harassing or bullying you on WhatsApp. This can be done by opening the chat with the person, tapping on their name at the top of the chat screen, scrolling down to the bottom of the screen, and selecting "Block". This will prevent them from contacting you on WhatsApp.

If the harassment or bullying is severe, you may also want to report it to JTWhatsapp APK by using the "Report" feature. This can be done by opening the chat with the person, tapping on their name at the top of the chat screen, scrolling down to the bottom of the screen, and selecting "Report". You will then be prompted to select the reason for the report and provide additional information.

In addition, it is important to reach out to someone you trust, such as a friend or family member, for support. You may also want to consider seeking help from a mental health professional or a support organization for victims of online harassment and bullying.

Remember, it is never your fault if someone is harassing or bullying you online, and it is important to take steps to protect yourself and seek help if needed.