“The beginning of the end. Something is said to have “jumped the shark” when it has reached its peak and begun a downhill slide to mediocrity or oblivion… It supposedly refers to an episode of the TV show “Happy Days” in which Fonzie jumps over a shark on water skis, …the point at which the series had lost its touch and was beginning to grasp at straws.” – from the Urban Dictionary
I’m a long way from my end.