its love for your mum and the loss of her that is making you feel and think things the way you are thinking them now.
Your mum would not have wanted a day more on earth if she knew she was going to displease Him or loose her relationship with her maker.
There is so much you will never know especially as it regards her relationship with Her God.
Sh lived her life the best way she thought.
You see, our ways are not God's ways. The Bible says as far as the heavens are from the earth so far apart are our ways from the Lord.
The foolishness of God is wiser than men. Because God is all knowing
So sorry about Your mum. There is nothing to live on this earth for, if she had an encounter with God believe me she will rather be with Him than being here. She knows you will be well taken care of by God himself.
Only God can comfort you and heal your heart and those of your family members and give you peace. But don't shut God out in your grief and anger.
There is a time and a season for every one. Babies die, young people die too and of course older people. Everyone has his or her time. But they mystery is we don't know our timing.
The one who gives it comes for it when its time. Ours is to be ready.
Sorry again, I hope and pray you let God heal you and talk to you. To everything God does, there is a purpose. And God is real.
As for your Dad, God will reach him in His on way.