HI there, I can relate. God bless your children. I was very fearful as a child, too. I have found AWESOME faith in Jesus and reading The Word of God!
Matthew 10:28 - And fear not them which kill the body, but are not able to kill the soul: but rather fear him which is able to destroy both soul and body in hell.
John 3:16 - For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life.
Revelation 21:4 - And God shall wipe away all tears from their eyes; and there shall be no more death, neither sorrow, nor crying, neither shall there be any more pain: for the former things are passed away.
Luke 23:43 - And Jesus said unto him, Verily I say unto thee, To day shalt thou be with me in paradise.