I think it's wise of you to take it gradually, if that's what feels most comfortable to you. I find that people who jump into it from being meat eaters tend to fall back into eating meat again when they're tempted. On the other hand, I find that people who were vegan before going raw tend to fall back into eating cooked vegan when they're tempted. And yes, chances are you'll be tempted to try your old (cooked) diet from time to time after going raw. It's all part of the raw journey, in my experience.
For me, I wasn't intending to go raw when I first started out down this path. At first, I just avoided eating flesh. The more I researched it, the more you realize how disgusting it really is. But I wouldn't want you to think too much about the animals that people around you are eating, and how they must have died, because the more you think about it, the more repulsive it becomes, to see in your mind's eye the slaughter of these poor beings. Now, you might even find after a while, that the sight, smell, and taste of cooked flesh triggers these thoughts. That's how it happens for me, anyway. (Side note: nobody really eats "chicken." What they eat is "a chicken.")
After I stopped eating flesh, I started to read all about vegetarianism and veganism. There are plenty of good vegetarian/vegan cookbooks out there, and most of them tend to have introductions that talk about veg nutrition. That would be a good place to start, wouldn't you agree? After I started reading up on it, it was only a short while before I stopped eating eggs and dairy.
I've also found, that so long as you keep it in the back of your mind where you eventually want to end up, you will naturally and effortlessly move in that direction. Now, It really is quite simple to make these changes. After all, if you're offered foods that you'd rather not eat, isn't it quite easy to just eat something else instead? And if you were to grow increasingly curious about the moral issues of animal agriculture, you might find, that the more you research these things, the more you will want to go vegan, more and more and more.
I suppose I should add that I transitioned from being a meat eater to being a vegan when I was 19. Now I'm 21 and raw. It really is the best thing I've done for myself and for the rest of the world, and I couldn't be happier for it.
-Random Violin Guy