After you have done all you can to solve a problem, heartfelt prayer will certainly accomplish more than worry.
وَلٰكِنْ كَيْفَ تُسَاعِدُكَ ٱلصَّلَاةُ أَنْ تُخَفِّفَ ٱضْطِرَابَكَ وَتَطْرُدَ ٱلْأَفْكَارَ ٱلسَّوْدَاءَ مِنْ رَأْسِكَ ؟‏ —‏ مز ٩٤ :‏ ١٨ ،‏ ١٩‏ .‏