I do not think anything terrible is going to happen to nonbelievers, but that is just my personal opinion, and my hope.
I am not God so I don't make any judgment calls.
I think what will happen to any of us will depend upon how we lived our lives and how we treated other people, and from what I can see you have led a very good life and treated people well.
What happens to non-believers I find is the same at death:
ALL ' return ' just as dead Adam did - return to the dust of the ground - Gen. 3:19
Like Adam, at first Adam did Not exist, then Adam came to life, at death all of Adam returned to non-life.
So, the ' terrible ' thing was that Adam lost his life forever and ever (permanent death, permanent non-existence)
No post-mortem penalty at death, No double jeopardy at death, just going back returning to non-life.
God's judgement is recorded for us in the Bible.
How living people treat Jesus' spiritual 'brothers' (Matthew 25:40) will make a determination at Jesus' coming Glory Time - Matthew 25:31-33,37.
The figurative 'sheep' can remain alive on Earth to see calendar Day One of Jesus' thousand-year reign over Earth.
The figurative 'goats' will be destroyed forever (perpetual death) - Psalms 92:7; Psalms 104:35; Proverbs 2:21-22