Yes, let's pray. But also, let's turn back to the law of the God to Whom we are praying.
We should pray but because of our sins God is not listening to our prayers. If you live according to God's law, you should refrain from wishing harm to others. Make the utmost effort to follow the instructions. Religiously the main principle of any religion is to work for the welfare of people.
If you expect the good of others, God will help you.