Why don't you entrust your dreams to Matsushima Shrine's "Ryomufuda"!
I tried to practice this. Just one year ago, I passed the national exam with a pass rate of about 2% in my late 60s (= old ginseng) thanks to the benefit of "Ryomufuda".
The method of praying is as follows.
First, get "Ryomufuda" (= ¥ 500) at Matsushima Shrine.
And the day before the important day, fill out the form inside the bill with wish. This paper depicts mythical and young Okuninushi (= Oguro Ebisu) by the flash of Miyashi.
And put the completed bill under the pillow at night to sleep.
The next morning, when you put this bill in the prayer box for fulfillment of the good dream bill at Matsushima Shrine, Miyaji will strictly hold the Masamu fulfillment festival in worship hall.
After this ceremony, the bill will formally become the "Ryomufuda = amulet" where God dwells. This is derived from the legend that "a good dream with Okuninushi will be a real dream."