Write the holy name AL RAHEEM ال رحیم on a piece of paper and to place under ones pillow and then recite:
ALLAHUMMA ARE’NE BEBAR KA’TE HAZEHIL ISME FIL MANAME MA OREEDO
اَ للھُمَ اَ رِ نۡیِ بِبَرۡکَتِ ھٰذِھِ الاِۡسۡمِ فِی الۡمَنَامِ ما اُرِیۡدُ
Keep in your heart the reason you seek guidance for. After reciting the dua go to sleep and one will see if his decision is good or not.