Step 12 says to click the drop down menu that says "Which Pitch field
in your file do you want to match against to set the Pitch lookup field?" however it doesn't give me that option on my screen. I'm not sure why it's not giving me that option and I can't continue without it.
Ok, I logged into your account and I can see you somehow missed doing Steps 65-73. So now, got to Setup > Object Manager > Meeting and then do Steps 65-73 but just Save only at the end -- NOT Save and New.
Then go to Step 80 and continue on and it will work this time.