A questioner is in turmoil because their sins torment them. How can they deal with this? The person has been asking for forgiveness for a while now.
When we approach Allah we must have the sense that Allah is forgiving and merciful. We have to make sure we are not giving the impression that Allah will not forgive us when we commit a sin. We should have the confidence that Allah is forgiving and merciful and we should act like that.
We were sinful and now we have reformed ourselves. We have to walk with confidence and reassurance that Allah is forgiving and merciful. We shouldn’t brush off our sin but we shouldn’t treat it like it is a mountain on our backs.