300 on my first prep test am i GMAT material

Just started with the GMAT and did my first GMAT prep test, i got a 300; I have not even started with studying and im already wondering do i have what it takes to get to 600 or 700. As a start its already demoralising, wondering if you have to be a particular person to do the GMAT's Im 27 with 3 yea...