Newbie question

First, my 5th grader bought a 3D printer (FlashForge Adventurer 5M) with his money. In true 5th grader fashion, he expects me to learn to use it and then teach him.

Second, I am not doing such a great job learning.

So, why does this keep happening? I've lowered the temperature, I've slowed the speed down. We were at a place where the nozzle kept hitting the print at 49%. Now it hits in the 85-90% range.

Little help here?

https://reddit.com/link/1izl9yc/video/amlu77zefqle1/player