I didn't delete the first pitch and connected these to them on accident, so now I've already gone through and did the signup steps on 1a, 5-36 on 1b, and now I'm getting started with 2a again. However, I can't figure out how to delete the first pitch or delete the fields it's connected to in order to delete them and connect them to the correct pitch.

It was timed out!
Yeah so that's why the instructions on redoing with a new account say to do Steps 5-36, right? Steps 1-4 are to delete the work you did in 1a but you didn't do 1a so there is nothing to delete so this time you are SUPPOSED to skip 1-4, right? It makes sense if you think about it a little, right?