Is the feeling of remorse and depression after performing Umrah, due to past mistakes that led to divorce, an indication of the acceptance of Umrah?

We have no knowledge that what befell the questioner is an indication of the acceptance of her 'Umrah. However, her admission of her mistake and her prayer that Allah compensate her with something better, is a good and commendable matter and a sign of goodness. The knowledge of the acceptance of deeds belongs to Allah the Almighty, and the servant should perfect their deed and then hope for acceptance from Allah. It is commendable to hope for the acceptance of obedience and repentance from sin. She should be optimistic and continue to supplicate while having a good opinion of Allah.