Your unweighted GPA at present is, statistically, not a strength for your application as compared to the accepted typical candidate.
The good news for you and other candidates is that West Point does consider a Whole Candidate Score (WCS). If you excel in your standardized testing to the levels you are aiming for, that certainly would be a benefit toward your WCS. Please research the points that West point values - scholar, athlete, leader, civic impact ranging from the classroom, activities, the athletic field/ pitch, student government, did you go to Boys/Girls State, are you an Eagle Scout/ were you the Senior Patrol leader in scouts? Are you a team captain in athletics? Are you a standout athlete who could add value to one of the USMA varsity teams? How have you made a difference in your community? How else can you articulate that you stand out (Private pilot), rescue / service, etc.? How about JROTC or Civil Air Patrol leadership and advanced rank? Are you a distinguished scholar with strong AP scores? Do you have rock star essays? can you prepare for and rock your interview to shine on why you want to serve as an officer?
With regards to your SAT/ ACT goal, how consistent is that goal with your PSAT/ early SAT attempts, mock test scores? without pause, it all goes into the pot of the whole candidate score, and your competing against some rocks stars in your graduating global class (and reapplicants, some enlisted applicants). So, across the board, go for it, and deliver results not excuses.
I like the guidance in the post above by
@Academician - I'll just add that each candidate can choose which category is their Plan A-B-C - for some candidates, for them - ROTC is Plan A, while others it's a hard tilt to prefer a service academy as their plan A.
Go for it and good luck.