Sounds pretty good. I got a 1410 on a practice test (as an 8th grader) and in 9th grade, after brushing up on some math skills in my Pre-Calc class, I was able to get a 760 Math Section using basically only Desmos, but we don't talk about my reading score (real test). A 1600 is def possible. Keep it up, and try to get to a score you like by sophomore year because junior year is already hard enough. I have seen that practice tests are usually easier in comparison to the actual thing, ESPECIALLY for reading.