Core Concepts SEE prep package

Need some advice or encouragement. I’ve been studying here and there for the past few months but it has not been truly productive (except for weekends) d/t clinical demands. I have the SEE in 2 weeks and I am now intensely studying. I need a 425 to graduate and take boards. I bought the core concepts SEE prep before Apex came out with the new smart bank. My scores from the 5 tests range between 40s-50s (not even meeting average…and my Core Concepts SEE prep score resulted in a 340. Extremely discouraging. Should I delay my SEE exam date?