Call something your own - Idioms by The Free Dictionary
call something your own
call (one's) own
To regard or claim something as under one's own control or belonging genuinely or solely to oneself. Many people are in dire poverty in this area, left with hardly anything to call their own. I've been dreaming of the day I have a car to call my own.
call something your ˈown claim something as belonging to you: At her age she needs a place she can call her own.
References in periodicals archive
So you see, trying to call something your own
when your siblings had exactly the same things was just impossible.