Need to find clipboard last copied item lost by accidentally copying again very important thank you clipboard on iPad 2?

So if I accidentally copied and pasted the wrong one sentence text over all of the text that I wrote after cutting or copying and pasting the original LONG essay text online that I wrote on the Internet there is NO clipboard for me on an IPad 2 for me to find my LONG originally copied and pasted text? Even though I copied the whole thing and then accidentally copied something else, selected all, and pasted the wrong tiny item, replacing my LONG 3hour essay? WHERE IS THE CLIPBOARD ON AN IPAD 2??? Thank you!

Need to find clipboard for earlier copied item please