I can only emphasize on having one on one with your teacher, since s/he will, over the course of the year, understand how you function/write/think better. But a tutor for Revolutions is, what I can say, rather...strange. If not, only moderately useful in terms of giving you a structured content that you have to or already know. I'm sure if you ask around this board here next year, there should be a bunch of people willing to help you out, or even buying certain books (HTAV's revolutions) and/or Student Access to History are somewhat swell and will provide the extra information that tutors might not include, but rehash the mainstream events.
But history is worth doing. It's a learning subject which has taught me a hell lot about how I function, in terms of my english/humanities side. Not so much on the maths sector though, heh.