WDI Fundamentals Unit 1
Professional web developers often joke that a third of being a real programmer is just knowing how to find answers on Google. This may be an exaggeration, but the point is not to worry if you ever find yourself scouring the web for the solution to a difficult coding problem. Even professionals do this and it's totally normal.
As you know, Googling something doesn't always lead to a perfect answer or an exact solution. It's equally important to have other online resources and to eventually learn to identify and fix errors on your own.
The video mentions w3schools, codepen.io, and stackoverflow as resources for debugging. Professional developers use a number of resources, and may prefer some over others. Below is an additional list of sites developers may reference while working.