The key is to keep the faith and working in faith, even in the darkness. The Dark Night of the Senses means we have no consolations and that we should not seek these.
Simple? No, our whole being cries out for love. But, the Love Who Is a Person wants to meet us in a new way.
It does not matter if we are completely alone, like St. John of the Cross in his cell.
It does not matter if we are known or understood. There is One Who Does know and understand us.
The purification of the senses means nada, nada, nada.
Do not run away from this trial.
The Light comes eventually, when one is ready and when God is ready.
Also, realize two things in the Dark Night.
One, if we are punished, like all sinners, we deserve it.
Two, God allows satan to sift us, through other people and circumstances.
Rest in His Plan.
How happy are the poor in spirit:
theirs is the kingdom of heaven.