Re: hurry up plz..
A lot of people think you get an answer in a dream; but that's not necessarily the case. You should pray the 2 rakat and recite the dua, and go to sleep, with the intention and expectation that Allah will guide you in making the choice which is better for you. If it's a choice between two things for instance, you may feel more inclined towards one over the other. The bottom line is that it's a very humble dua to ask Allah to help you in whatever you're about to do, and inshaAllah there will be barkat and guidance in it. There isn't really a time limit or minimum days etc. since it's always beneficial to make a dua.
When it comes to Islam and personal issues, it's between you and Allah.
Let's say you had a personal issue with a loved one in life and you were unsure about what to do; you would ask friends for some advice on how to approach the situation, and then speak from your mind and heart, rather than trying to follow some cookbook recipe of what to do, right? Same way here, you have the guidelines of how the Prophet (saw) taught us what to do and the concept of 2 rakat and the dua, and you should follow that. Do that, and just pour your heart out to Allah.
this got kind of long, but hope it helps you in whatever's on your mind. best of luck! :)