How come God didnt answer thousands of peoples prayers?

No one can ever know God's mind, or all the circumstances. Maybe she was already dead before people started praying. 

nonexistence would be my guess.

A Christian friend of mine once said "God hears and answers ALL prayers.  Only, the great majority of the time, the answer is 'no'."

Being raised in a religion other than Christianity, it always seemed to me that when Christians prayed they were usually asking for something.  Give us this, I want that, bless this or that, do this or that for me. 

This is a religion that believes God is running the universe according to some big complicated plan.  Yet they always ask for some variance, some exception to be made for them!  "Thy will be done, Lord, but give me this, do that, help with this, etc."

There's no way to specifically know why any certain prayer isn't answered.  There are too many factors, and other's wills opposed to what we may want, or what God may want, to determine what may come to pass in any situation.

You can present your desires to God, but obviously a prayer to protect someone  will not have an effect if the person is dead.

What man does God will not control

God’s involvement in human affairs is very rare. God doesn't watch each and every human being at the same time and cannot live with each and everyone to guide them. These works are done by the spirits. God had created different kinds of spirits for various purposes. He had made the spirits to watch, guide and determine the destiny of the human beings from their daily activities, talks and thoughts too. Your past determines your present and your present determines your future. God has given freewill to all creatures including human beings. According to this, all human beings have all right to live a life as they wish. But if it happens to be bad and hurts someone, they have to face the consequences. These consequences are created by spirits. It's a natural system. After death no one lives in any form. Heaven and hell are only for spirits, not for human beings. God is a mystery even to the spirits. Spirits are not eternal beings but their lifetime is long. Spirits are separate elements. A human being during his/her lifetime is living with many spirits which have joined one by one since birth. They are knowledge, skills, feelings, emotions, interests and everything. These spirits are your consciousnesses and memories. Even thoughts are not your own. For example, when you want to take a decision on a subject, one after another the spirits think and you just listen, choose or reject the ideas which they transmit to your mind through your brain in the form of thoughts. Brain is just a media to connect the spirits to your mind. A mind is just a computer's mind. A mind is you. After the destruction of a computer completely you will not get it's mind. The same is the case with the human beings.  A human being doesn't have a spiritual body. Soul is nothing but an energy needed for the functionality of a body. It is not a spirit or anything else. A body's functionality is based on the auto mechanism.  After death all spirits which accompanied a person quit and go to different places searching new bodies. No one lives in any form after death. All human beings are just robots made of flesh and bones and toys of the spirits for their games.

Actors and actresses are like Gods #1 enemy

Does God listen to all prayers? Watch this video: https://www.jw.org/finder?wtlocale=E&docid=502018856&srcid=share

You just do not like the answer, but who are you to question?