Try something out and see how it goes. Let others know what you’re trying to do, show your work, and let them know when you fail.
The ones you showed your work to may have ideas to help you test better in the future.
It’s a good practice to let others know when you have failed - it makes you comfortable with failure.
A peace can be found in closing the books.
It’s okay if the test fails. It’s just a test.
Your life is a series of failures. And you likely have, as Churchill stated, jumped from “one failure to the next with no less of enthusiasm.”
Perhaps that’s why I’m so happy :)