If you really want your duas to be answered then recite this powerful dua:
لاَّ إِلَـهَ إِلاَّ أَنتَ سُبْحَـنَكَ إِنِّى كُنتُ مِنَ الظَّـلِمِينَ
There is none worthy of worship except You, Glory to You, Indeed, I have been of the transgressors.
May Allah accept our duas آمين