cosmon:
Do not be overly concerned right now and make sure you take the exam again. There is little to no downside to giving the GMAT a second attempt. At the very least, you have this score "banked," which works since they count your highest for admission.
In your preparation to take the GMAT again, make sure you understand why you scored so low on the Q component. You won't be able to get the exam back but if you can self-diagnose the issues by way of practice exams and questions, that should help. The good news is that the GMAT rewards balance so given the disparity between your Q and V scores now, if you can increase the Q a bit more it should have an outsized effect on your overall score.
Good luck and reach back out to the community after you get the results from your second try.