failure, fail your

Failure or failure ( one word ) means defeat or a lack of success; a malfunction or defeat, or the neglect of an obligation --
He started his own business, but it was a failure.
They blamed their failure on poor coaching.
His failure to comply with the regulations led to his dismissal.

Fail your or fail your ( two words, rhymes with failure ) means to be unsuccessful or inadequate ( fail ) followed by "your" --
You will fail your exam if you don't study.
The teacher will fail your paper if you hand it in late.

Now that you know that, you can say--
"Your failure last semester doesn't mean that you'll fail your finals this term."