Tutorial--What problems I had in order not to be finished? and learned?

The problem that I had that I could not finish it is because when it said to extrude...that I did only that the 3 arrows didn't appeared...what appeared is the selecting vertices just spread out. That made things complicated because I didn't know how to fix it. This made me not continue the tutorial on Step 12.

What I learned on this tutorial is to whenever you get stuck on one step is to ask for help. Also, to really really read the instructions even though it kind of explains it weird. But, to try to understand it as possible as you can. How to use extrude + G. This is what I learned.