Storyline 2 Removing Correct Questions Leaving Incorrect

I am trying to set up a test at the end of a course and having issues. Is there anyone out there that can help me?

• Test at end you take that requires 100% to get a certificate
• If the learner does not pass the test, they can return to the beginning of the course to re-study the content for the questions they missed
• When they reach the test again, only the questions that are missed show up
• This loops until they pass the test
• When they pass the test, they go to a page that allows them to print a certificate

I attached the course.