Start by taking some time to review and adjust your privacy settings. This includes making sure that your posts and information are visible only to the people you want them to be visible to. You can also choose to limit who can see your friends list, photos, and other personal information.

To access your privacy settings, click the arrow in the top right corner of Facebook and then select "Settings." From there, click on the "Privacy" tab.

2. Use Facebook's Privacy Checkup Tool

Facebook has a tool called Privacy Checkup that can help you quickly and easily review and adjust your privacy settings. To access this tool, click the arrow in the top right corner of Facebook and then select "Privacy Checkup."

3. Disable Third-Party Apps

Third-party apps that you've connected to your Facebook account can have access to your personal information, including your posts and photos. To make sure that only the apps you trust have access to your data, disable any apps that you don't use anymore.

To disable third-party apps, click the arrow in the top right corner of Facebook and then select "Settings." From there, click on the "Apps and Websites" tab and then select the apps that you want to disable.

4. Be Careful About What You Post

Always think before you post something on Facebook. Remember that once you post something, it's out there for the world to see. If you're not comfortable with the idea of everyone seeing what you post, then don't post it.

5. Use Strong Passwords

One of the best ways to protect your Facebook account from being hacked is to use a strong password. A strong password is at least 12 characters long and contains a mix of upper and lower case letters, numbers, and symbols.

6. Enable Two-Factor Authentication

Two-factor authentication adds an extra layer of security to your Facebook account by requiring you to enter a code that is sent to your phone whenever you log in. To enable two-factor authentication, click the arrow in the top right corner of Facebook and then select "Settings." From there, click on the "Security and Login" tab and then select "Use two-factor authentication."

7. Be Aware of Facebook's Data Policy

Facebook has a data policy that outlines how the company collects and uses your personal information. It's important to be aware of this policy so that you can understand how your data is being used. You can read Facebook's data policy here: https://www.facebook.com/about/privacy/.

By following these tips, you can help to protect your privacy on Facebook.