There is a convincing line of thinking that regards fear* as the greatest sin; which is opposed by the virtue of trusting in the goodness and love of God.
This implies that we are meant to trust in our own salvation - i.e. be supremely confident that we, our-selves, will be resurrected to eternal Heavenly life; and therefore we ought Not to live in fear of damnation.
Only if we live confidently trusting in the fact of our own salvation, can we make salvation - that is our future Heavenly destination - the basis of our mortal life.
Surely this is what we need? I mean, to live this mortal life in the eternal context, to recognize it as a preparation for the Main Thing - which is post-mortal, resurrected life?
If so, then we should not allow ourselves (as So Many Christians have done, and still do) to mistrust and fret over whether or not we will be saved.
It is a very different matter to live in fear of damnation than to trust in salvation: at best, fear of damnation is merely a double-negative simulation of the positive faith which leads to following Jesus through mortal death to life-eternal.
A challenge to this - which comes to mind - is that someone might have the idea that he can be sure of salvation whatever he thinks, believes or does...
Yet that is incoherent nonsense. Someone who really believes in the salvation of Jesus Christ - in resurrection and eternal heavenly life - will naturally know that if Heaven is a real place, then it is Not something that can be fitted-around our mortal life.
If Heaven is real to us, then we will recognize mortal life must be fitted around Heaven - that way around. If Heaven is really-real then the natural and rational question is 'how we get there'.
Only if Heaven is un-real to us could we have the idea that we would go there whatever we thought/ believed/ did; that we would arrive there whatever direction we travelled; and would arrive there even if we not not want what Heaven actually is.
As I have often said, Christians - like almost everyone - are prone to abuse fear to gain short-term goals (e.g. threatening and scaring people with consequences); whereas what should-be aimed-at is a life without fear:
Without fear because we know (that is, we have solid faith) that God the creator loves us, and is good.
*By fear I mean 'existential fear' - which is a motivational state primarily, rather than an emotion.