:sl:
Dear brother don't be sad, next time inshallah you will pass your test :thumbs_up, don't give up :)
First you should think thoroughly about the reasons that led to u not passing the test, and make sure you don't repeat the same mistakes next time you take the test, there is an Arabic proverb that says:
اعقلها و توكل
"Trust in Allah, but tether your camel first"
which means you have to be well prepared for everything, then ask for Allah's help :)
Second, I didn't find better than this Ayah when asking for success :)
بسم الله الرحمن الرحيم
رَبَّنَا آتِنَا فِي الدُّنْيَا حَسَنَةً وَفِي الآخِرَةِ حَسَنَةً وَقِنَا عَذَابَ النَّارِ
سورة البقرة - 201
Rabbanaa a tinaa fid dunyaa hasanah wa fil akhirati hasanatan wa qinaa azaaban naar
Translation: Our Lord! Grant us good in this world and good in the life to come and keep us safe from the torment of the Fire[Al-Baqarah :201]
May Allah grant you success :)
:w: