God already knows what you need. Prayer is how you remember that He knows.

None of this is about transmitting information. If nothing is being reported, the activity is doing something to the person speaking, which is where the value sits. Saying what you need out loud organises it, shrinks it, and reminds you that you are not the only one responsible for it. Remembering is the function, and people need reminding constantly.

Say the actual need plainly this week rather than a general request. Name the exam, the money, the person you are worried about. Then notice that something has changed in you even when nothing has changed outside.