We can have the mercy of God whenever we want it, by being merciful to others: for it is God’s mercy that acts on them, through us, when He leads us to treat them as He is treating us.
If we want to know God, we must learn to understand that weaknesses and sins and imperfections of other(s) as if they were our own.
Perhaps an operator could get the idea this is pelagian, but I think that’s a rabbit hole. For both pharisee and rigorist.
When we have mercy on others, we are operating instead from the vantage point of Jesus. We do as he did and would do. I thinnk there is a supernatural grace at work when we show mercy quietly, humbly, and without expectation of reward.