Then do it. No one can really study for you. You need to sit down and go over the material. If you want some studying advice, here goes:
1. Do not have really long study sessions. It's better to study, break, study,etc.
2. Read over all of the material you have.
3. Highlight the important ideas/topics if possible.
4. Summarize the material. Summarizing is tough, as you have to put the material in your own words. This is a critical step, as it helps you contextualize the information. This is the step where your brain takes the information from the book and puts in in words you understand. If you can't find a way to summarize the information, then you need to focus on that area.
5. Quiz yourself both on lessons and larger units. I put each question on a card, and then divide them into 10 card stacks. I then go through the stack until I can answer every one correctly (the answer is on the back). If I miss one, then I have to do the whole stack of 10 over. Then I add another 10, and another 10, and another. It takes a lot of time, but leads to mastery of the memorized content.
6. Work with a partner or friend to study. Have study sessions where you quiz each other. It may be awkward not knowing something, but it's a reality check.
7. Highlight, color, draw. Do whatever you need to do in order to clearly visual the information. If that means that you have to highlight different topics different colors, do it. If you need to draw a picture of how things work, so it. Use arrows and symbols!
8. Don't cram before the test.
I hope that helps.