The first step to success is knowing what the target is so that you can aim for it. Use the Biology 12 Itinerary to stay on track.
Be an active learner! Do your automatic homework by reading ahead, answering questions in the workbook (and checking answers here), and processing the information in your Portfolio of Learning. Make sure you stay on top of it every day. That way, you will be constantly reviewing and thinking about the content, rather than trying to cram for the exam.
Check the AP Biology Itinerary regularly. Create a study schedule and stick to it. Stay focused and self-disciplined. You know what to do. You can do this.