If you avoid root vegies, it is almost impossible to go over 100g carbs per day. Even with root vegies in moderation it will be hard. I suggest you start easing yourself into primal, by changing one of the daily meals each week and winding back on snacks. Start walking as much as you can. Get 8hrs a day sleep. Maybe even read the book again.
Read the 101 on the site and concentrate on what Mark has to say. The forum has many opinions so gets very confusing. Listen to Mark rather than us until you have a good feel for what he is saying and want some advice specific to your circumstances