CONDITIONALS: IF ONLY

IF ONLY
If only expresses a wish—one that you are doubtful about actually happening.  (=OJALÁ...) The result clause is optional and it is written in a new sentence.
I WISH…
If only  I had more time!.... I could relax.
If only  you would clean up your room. You would find your lost jeans.
If only I had some Zing window cleaner.
If only  I could please my mother-in-law.
If only  you were here!
If only  he hadn't told his mother everything.