According to Catholicism and/or Eastern Othodox, if we have Guardian Angels do we also have an assigned Demons?

The idea of having a demon assigned to us isn’t new to anyone who is familiar with C.S. Lewis and the Screwtape letters. Since the idea (according to Catholic and Orthodox Tradition) is that God “assigns” us each a Guardian Angel is it likely we also have a demon assigned to us? I can’t comprehend how the world of angels and demons exists but if there is an eternal struggle for our souls it would make sense. From a biblical perspective *Acts 12:15 New International Version (NIV) 15 “You’re out of your mind,” they told her. When she kept insisting that it was so, they said, “It must be his angel.”* - Seems to support the notion of guardian angels. King James Bible Matthew 18:10 *Take heed that ye despise not one of these little ones; for I say unto you, That in heaven their angels do always behold the face of my Father which is in heaven* - Is another example. Through my research the term guardian angel or guardian demon is not found within scriptures.