In the pdf they link to a couple places and on their forums you’ll find some advice for others.
There are privesc check list and such.
I always recommend people newer to the game to focus more on the PDF/Videos and student labs > public labs. If you do the other two first you will crush the labs way faster and with better understanding.
Plus you can do the writeups as you do them and practice notes/writeup.
OSCP isn’t just the machines it’s turning around and putting in a good report too.