Trying again isn’t stubborn. It’s collecting data the first try couldn’t give you.

One attempt tells you almost nothing, because a single result cannot distinguish between a bad approach and an unlucky day. The second attempt is where the information starts, since now you can see what repeated and what did not. Stubbornness is repeating the same method and expecting a different outcome. Trying again with one thing changed is the opposite of that.

Before you go back in, name the single variable you are altering and only alter that one. Write down what you expect. Then the result teaches you something instead of just feeling better or worse.