Privacy settings for social media?

A number of steps taken can be taken defined by the NCSC UK to keep social media such as Facebook, LinkedIn, Twitter, YouTube, Snapchat and Instagram private. Start by setting your privacy, understand what you leave behind in terms of data, set up two-factor authentication and protect your children.
Get them here: https://www.ncsc.gov.uk/guidance/social-media-how-to-use-it-safely