Allaahumma laa sahla 'illaa maal ja'altahu sahlan wa 'Anta taj'alul-hazna 'ithaa shi'ta sahlan.
O Allah, there is no ease other than what You make easy. If You please You ease sorrow.
You can say it as many time as u want.
As for the interview day, say: rabbi adkhilni mudkhala sidqiw wa akhrijni mukhraja
sidqiw wa-j'al li mil ladunka sulta_nan nasira ( Say: "O my Lord! let my entry be by the Gate of
Truth and Honor and likewise my exit by the Gate of Truth and Honor; and
grant me from Thy Presence an authority to aid (me).") Quran, 17:80
Then say what Moses said: "Rabbi ‘shrah li sadri wa yassir li amri wa ‘hlul’ uqdatan min lisani yafqahu qaoli".
(O My Lord! Expand my b****t for me. And ease my task for me; and loose a knot from my tongue, (That) they may understand my saying.) Quran, 20: 25-28.
For more Dua' concerning different situation, have a look at "Fortress of the Muslim" http://www.islamawareness.net/Dua/Fortress/
Answered By: M. Knight ♥Sunnah Defender♥ - 7/25/2010