Poor OAT Scores- Need Advice

Hi! This is my first post, so I really hope I'm doing this properly.
I took the OAT in September and did not do as well as I had expected from my practice scores.
My actual scores were (taken September 15):
AA 310/ TS 270
Bio 270
GC 290
OC 240
Phys 300
QR 350
RC 380

My practice scores on the ADA test were (taken September 1):
Bio 370
GC 360
OC 350
Phys 310
QR 370
RC 300

My Practice Scores on Kaplan were (taken May 20&July 15):
1:
Bio 290
GC 250
OC 300
Phys 260...

Poor OAT Scores- Need Advice