If I got 1350 on a practice test without studying, could I take the SAT in 10th grade?

I did the official blue book practice test (saving most for when actually needed), and I got a 1350 (680 reading, 670 math). I’m in 9th grade, didn’t study anything. Do you think it would be logical and possible for me to score a 1500+ on the SAT if I take it next school year? I want to do this because I want to reduce my workload as much as possible once my IB program starts.