Your exams are just coming up and you are worried about doing your best, but at the same time you have not lost hope because you know Allah is going to help you as you put your complete trust in Him.
This dua for exam can do wonders for you if you fully understand its meaning and dwell on what this all about. It is all about giving up on yourself, your self-confidence and any thing, and pinning all your hopes on the Self-Subsisting, Allah.
حسبنااللہ ونعمل الوکیل
Transliteration: Hasbunallahu Wani'mal wakeel
English Translation: Allah is sufficient for me
This easy to memorise, yet powerful dua is your weapon. Keep reciting it on a regular basis.
The most important thing about this dua is the more you dwell on its meaning, the better your results will be. We often make the mistake by not paying attention to the meaning of duas and end up reciting with no real feelings. Feelings of power, hope and confidence will be created only when you dwell on its meaning.
By reciting this dua, you are declaring that Allah is the one who is the Creator of your exams, the Creator of your teachers, the Creator of the building you are going to take your exam, the Creator of your memory that you will be using to write in your exam, the Creator of the pen/computer/pencil you will be using in your exam. So, there is no way you should feel overpowered by negative thoughts and hopelessness.
This dua can be recited if you are preparing for your exams or are waiting for your results or even you don't want to fail and just want passing grades.