i don't understand how the universe works

Yesterday, someone gave me an advice on how to deal with all these thoughts that have been clouding up my mind for days:

"Let it go. Let it flow. If it is meant to be, the universe will work and drag you toward it."

But, is that how the universe really work?

I am a stubborn, impatient person. If it is meant to be, I want it to happen now. I want to know now that it is going to happen. I want to know now when it will happen. I want to know and I need to be assured. Waiting patiently for things to come to me is not my style.

The guessing game is driving me crazy.