The easiest method is to navigate to the privacy options within the app. You'll likely find options like 'Friends can't see', 'Selected friends can see', etc. Just pick the one that suits your needs. Also, make sure to double-check the settings after making changes to ensure they've been applied correctly.
You can adjust your privacy settings. Just go to the settings of the app you use and look for the option related to story visibility and select 'Only Me' or specific groups you want to allow.
One way is to go into your account settings and find the 'Story Privacy' section. From there, you can choose to hide your stories from everyone except for yourself or customize the list of people who can see them. Another option could be to temporarily disable the story feature altogether if you don't want anyone to see them for a while.