I’m going to link this page on the Vex Forum.
New Team Robotics Guide v2.0
Intro:
When I started out in robotics, there was no good guide on what mistakes I should avoid doing and what things are really useful. Last year, I made a new team guide . However, many of the links were now out of date, and I gained new information last season to make a better guide. This should be a helpful resource to new teams to help them avoid many of the mistakes that new teams make and help give them a better understanding of how vex robotics works. I hope …
Following the guide here should help solve 90% of issues.
This NASA site also has helpful links to robotics things, although it is mostly focused on FIRST and BEST (vex is better tho)Robotics Alliance Project
This document is a great resource for most things robotics, although it is focused on FRC (boo)robotics.nasa.gov/downloads/nasarap-rdc-v101.pdf