Is there a dua to keep a secret hidden a told a person so that they dont reveal it? And how do I know my dua is accepted so I dont have anxiety every day about that

Call the name of the one who hides errors
يا ستار العيوب
regardless you should not be anxious about your secret being revealed since ultimately things in the hands of God, and He only allows the best to happen for us, though at times we don’t realize what is the best