If you really want to get stuck into the plan I would suggest spending some time reading the book from cover to cover, and work out what you can eat and work out your meals from there. Loads of people have food diaries on here, so it might be worth having a look to get some ideas.
In the first few weeks, if you're not sure about whether something is syn free or not, check before you eat it. You'll soon pick it up and won't need to keep checking. The syn value section of this site is a god send!
The magazine is absolutely brilliant for inspiration and recipes, and introduces new foods which are low/syn free. In class there are 2 small books, red and green, which are packed with everyday recipes. I think they only cost a couple of pounds each, but they are worth their weight in gold.
When it comes to Extra Easy I find it easier to start planning my superfree foods for each meal before I plan the free food. That way I'm much more likely to get enough in, and find I use less syns and Healthy Extras this way. Plus, I normally find I have more than 1/3 superfree on my plate, and never feel deprived, and never hungry.
Good luck, you're heading in the right direction!