Don't mean to discourage you or anything, but I thought test 1 was the easiest out of the 3.
For test 1, I got:
BIO 17
GC 19
OC 23
RC 15
QR 24
PAT 19
TS 19
AA 20
Don't ask me about reading because I suck at RC lol. But as you start to take test 2 and 3, you will see that the tests get progressively harder. I'd say that Achiever is generally harder anyways. You will for sure do better on the real DAT considering your scores for test 1. Just keep in mind that Achiever isn't for indicating what you will get on the real test, but for telling you what you need to focus on for the rest of your studying. Try your best as always.