Subsequent to the Afternoon (Asr) Prayer, say the following prayer, as quoted from Misbah al-Mutahajjid
اسْتَغْفِرُ ٱللَّهَ ٱلَّذِي لاَ إِلٰهَ إِلاَّ هُوَ ٱلْحَيُّ ٱلْقَيُّومُ ٱلرَّحْمٰنُ ٱلرَّحِيمُ ذُو ٱلْجَلاَلِ وَٱلإِكْرَامِ وَ اسْالُهُ انْ يَتُوبَ عَلَيَّ تَوْبَةَ عَبْدٍ ذَلِيلٍ خَاضِعٍ فَقِيرٍ بَائِسٍ مِسْكِينٍ مُسْتَكِينٍ مُسْتَجِيرٍ لاَ يَمْلِكُ لِنَفْسِهِ نَفْعَاً وَلاَ ضَرّاً وَلاَ مَوْتاً وَلاَ حَيَاةً وَلاَ نُشُوراً THEN say O Allah, I surely seek Your protection against a self that never has enough, a heart that does not feel apprehension, knowledge that does not avail, a prayer that is not accepted, and a supplication that is not responded. O Allah, I surely beseech You for easiness after difficulty, relief after misfortune, and comfort after hardship. O Allah, You are certainly the source of each and every favor that covers us. There is no god save You.