Answer and Explanation:
G'day! Here's the answer to your question :
In polish, if you want to say, "You are doing well" then it would be something like this : "Radzisz sobie bardzo dobrze"
And, if you want to say ,"Don't worry. You are safe." it would be something like this : "nie martw się. jesteś bezpieczny."
Simple as that! hoped it helped!