A bad mock feels much worse when you treat it like a prediction.
It is not.
A mock is a practice test designed to reveal problems before the real thing.
Start by waiting until you are calm enough to review it properly.
Then look at the sections separately.
Was one section unusually weak?
Did timing collapse?
Were the mistakes mainly careless or conceptual?

Building Your Plan
Choose two or three things to fix before the next mock.
Do not respond by doing another full mock immediately just to “prove” the bad score was a fluke.
That usually adds stress without solving anything.
Use targeted practice, then retest later.
A bad mock can be one of the most useful sessions in your preparation if it shows you exactly what needs work.

