To make your privacy settings stronger on Facebook, open the app and go to Settings & Privacy > Settings > Privacy Checkup. There, you can control who can see your posts, friends list, phone number, and personal information. Set your future posts to “Friends” instead of “Public,” review past posts, and limit who can send you friend requests. You can also turn off location sharing and timeline tagging under the privacy settings. Regularly checking these settings helps keep your account more secure and private.