Social media is built to encourage sharing, which means the default settings often expose more than you would choose if you thought about it. Protecting your privacy does not mean quitting these platforms, it means being deliberate about who can see what, and building a few sensible habits around what you share.
Start with your settings, since most people never change them. Review who can see your posts, stories, friend or follower lists, and personal details, and consider making your account private if you mainly want to share with people you know. Restrict who can message you, tag you, or comment, and check the tagging settings so photos of you are not automatically visible to everyone. Turn off location sharing and check whether your posts attach location data, because broadcasting where you are, especially in real time, is a genuine safety issue. Review which third party apps have access to your accounts and remove any you do not use or recognise.
Then build habits around what you share. Be thoughtful about posting personal identifiers, your daily routine, your school or workplace details, family information, and photos that reveal your home or documents. Be selective about who you accept, since accepting strangers gives them access to everything you post, and fake accounts often gather information for scams or harassment. Remember that anything shared can be screenshotted, so privacy settings reduce risk but do not guarantee control. It also helps to periodically look back at old posts and clean up anything you would not share today. A few minutes adjusting settings and a habit of thinking before posting gives you most of the privacy protection you need.
Example: Setting an account to private, turning off location tagging, and removing unused connected apps takes a few minutes but immediately reduces how much strangers can learn about you.
One practical tip: Review your privacy settings rather than trusting defaults, and turn off location sharing. Also be selective about accepting strangers, since they get access to everything you post.