Hey Emmitt ... Best advice, avoid sugar like the plague. Check your carbs, subtract the fiber and sugar alcohols and you have your NET carb count for that item. Once you figure out how many carbs are in that item you can determine if it is worth it or not worth it to consume it. Stay under 20 NET carbs per DAY. There are some things I enjoy like fruits that have a higher carb count. In order to stay within the perimeters of FST and have my fruits, I adjust the rest of my menu for that day accordingly. Probably the safest way for you to go for the first couple of weeks would be to stick with meats, cheeses, eggs, sugarfree jellos, whipped cream, nuts and the like. The further you get into the process...the simpler it all becomes. I personally like to avoid sugar alcohols too... they can cause some stomach upset.
Go check out the "Ask Umpa" section and she has some amazing and yummy recipes you can try that will help SO much.
Good Luck!!