If you're brand new, you might find some great help from the PicoCTF Primer linked at the top of the Resources page.
We also store Previous Lessons on our GitHub, which could be useful.
For each challenge category, here's our suggested progression. For all of these, you can ask for a push in the right direction on the first in the progression. We want to make sure you don't get too stuck on the first challenge :) (except maybe pwn... even with a push you can get pretty stuck there)
| Note: these are our opinions. The 4th might be easier than the 3rd for you, and the 1st might be harder than the 4th for me, who knows
Rev
intro -> JavaScript Easy -> Yet Another Recursive Acronym -> RCaaS -> Angr Management -> Back and Forth
Crypto
Asynchronous Encryption -> RSA Dreams -> What the Hill? -> FlagCalculator5000TM -> Cryptanalysis
PWN
incontinent -> debugged -> intro2 -> heap2win