There are certain things he does that throws people off, first of all he has that lady walking underneath him to show that there's nothing under him. Then he dropped his sandal into the water. These little misdirections make it seem as big as it is. I'm sure the easier answer is the right one but he makes it look hard.
I could see in your face that this was hard to put on here and I know alot of people that wouldn't, that includes adults. That in itself makes you stronger then most of the people in the world. You don't need alot of a friends just a few really close ones. I was hard for me around your age but believe me if you want it and believe you can get it, you will be confident and accomplish everything you want in life. Keep your head up and stay strong. If that changes read these messages again.
If I screwed up a move I would use misdirection to get myself back into position. For Example if I'm doing the back slip and didn't grab the card I needed, I would drop my hands and make it dramatic and when they look up at me I do the move again and tell them to take that card. If I mess up on a trick I make a joke like I'm not that good, it brings down their shield for the next trick.