Did Jesus believe that the end would come in his lifetime and did he prophesy this?
If we read Mark 14:62, in answer to the chief priest's question "Are you the Christ, the Son of the Blessed One?", Jesus answers
"I am; and you persons will see the Son of man sitting at the right hand of power and coming with the clouds of heaven."
In reality though, this never happened. The chief priest and his co-workers never did see the Son of man sitting at the right hand of power.
Was Jesus prophesying?
The latter part of Mark 14:65 says, "Prophesy! And slapping him in the face the court attendants took him."