Iphone backup problem.... Accidentally restored back up,last back up was ages ago

Today i checked my phone and all the contacts were gone, so i tried to get all the contacts back by restoring them through back ups, which turn out to be long time ago, but then i clicked it (i was retarded) so now the phone has restore memories and data ages ago...and the new ones (after the backup files)are gone...... so anyone got a way to get the data(before i restore, that doesnt hav a back up) back before i restore? like the use of "command+'z'" for an essay and etc.?
plz plz plz help..... plz dont say 'sadly to tell you, but there ain't no way to fix it...' plz plz plz

are you sure..? cuz when i tried to click back up from that one, it appears to be the old back up too....... so normally should itunes backup a new one before we restore it from the old one?....
but if it rlly couldnt work... could you try to show me some app that might be able to restore through the Iphone itself or any chance that the mac could hav let me do something like "Command + z" to undo what i've done?...

NOoooo.....