Higher Education Development Centre
Find out if your University has a Higher Education Development Centre or similar. At Otago, the Student Learning Centre run free workshops on exam preparation and exam techniques. We have found these guys to be genuinely passionate about teaching and learning, and a really helpful bunch.
Check when sessions for you are, and try to schedule yourself in for a workshop or two when you have a chance. Obviously the longer you leave it the busier they will get, and the less time you will have to practice any new techniques or advice you may pick up to see if you find it useful before your all-important finals, so get in early! They also provide individual help to the whole spectrum; struggling through high-achieving students, and they have a wide range of printed and electronic resources.
For Otago University students, the Higher Education Development Centre site is accessible here.