I completed the fist line of step 73 a couple of days ago:
But today, when I went to finish the rest of the assignment, I am a little baffled where I start on to complete the following next steps:
Sorry you're stuck but there's almost always a pretty easy fix! Do NOT try to start all over again, uninstall Max's Pitch Package, etc. That can make it worse. There's a 95% chance the same snag/fix is listed & answered in the Help FAQ. But if you can't find it there, post your problem here.
Make sure you post in the right category below & be sure to include a screencap showing the issue!