Will I improve? (PSATS are tomorrow)

<p>I've been studying for the SATS since this summer, and my PSATS are tomorrow. (I know they don't count, but you know..)
Also, I've been taking other practice tests as well. Here are my (best) scores:
Crit. Reading: 540
Writing: 600
Mathematics: 630
Seeing I have very high expectations of myself, this is really bothering me. I studied a lot, however, my scores don't seem to be rising too much. (Especially for Crit Reading. It ranges in the 530-540 portion. My math and writing both improved about 40 points, but I'm aiming for at least 700)</p>

<p>So will I improve from now to Junior year? If so, how?
Does everyone improve as he or she keeps practicing?</p>

<p>Also, I have a 3.6-3.8 GPA (I'm estimating) and I want to pursue my goals in studio art.</p>