How much can SAT help me

I’m currently a junior and I just got my first SAT score of 1550 (800 English).However, my gpa is low; a 3.5UW and a 4.1W. I honestly have no excuse for this other than not trying, and I really put a lot of effort in when it came to the SAT. Wake Forest will be my top choice for college, and I plan to ED no matter what my counselor says. Will my SAT show AOs my worth? What else should I be doing to improve my chances?? (Finance/business)