At age 21, Yagudin lost everything to Plushenko. He lost his mentality. He put on 10 kgs. He almost quited FS. He insisted on "NO OLYMPIC". Tarasova threw him to a psychologist. At age 22 Yagudin won everything back including the OGM.
Before 21 years old, Plushenko also peaked mostly at GPF and he didn't peak his best at WC. After that he learned to always peak at the right time.
Yuna won GPF 2 years consecutively and was a favorite to win WC. She set WR in SP at WC 2007, then fell 2 times in the free and got the bronze. In WC 2008 she bombed the SP, won the LP but still lost. And by 2009 she lost the GPF but won 4CC and WC in the end.
These 3 skaters are among the best competitors of all time, and they all won OGM. The pressure on each if the certainly was huge.
Personally I think Yuzuru is no less than them as a competitor.
I agree with everything
don't ask me anything, you will know once it happens. 

. Thank you.