Hi spaghetticat...love that name. The spaghetti cat picture would make a perfect avatar for you!
Anyways, I did Medifast and then switched over to mostly diet direct items (same products as wonderslim and new lifestyle diet). I had to stop using most MF meals after developing a severe soy sensitivity. I've been following Atkins DANDR 2002 for a while now and have been very successful with it.
A few things come to mind:
Buy an Atkins book. You will need it for reference and to explain how to do Atkins correctly. I prefer Dr. Atkins New Diet Revolution
, 2002 ed. (DANDR 2002). Many people like the new Atkins book, New Atkins for a New You
Hopefully you have been logging your meals either over on the MF site or someplace like Fitday or Fatsecret. Look at your recent logs and see how many carbs/day you are currently consuming. Atkins uses NET carbs so that would be carbs-fiber=net carbs. This would give you a ball park idea of where in OWL to start.
However, Atkins follows a very systematic plan to add groups of foods after Induction. My suggestion based on your post would be to start with DANDR OWL 1 (more veg) OR NANY Induction (12-15g net veggie carbs). Either would put you at ~25g net carbs/day for the first two weeks. Then you could move up the OWL rungs in the order recommended
Both Medifast and Wonderslim are low calorie, low fat and lower total carb diets. Atkins is a high fat, low carb diet. Getting used to full fat dairy, salad dressings and cheeses as well as poultry with skin on (if you like that) and fattier cuts of meat may take a conscious effort as you are used to non-fat or low-fat selections.
I had better stop now before I write a book.
I think you will love eating real food again. I'll try to answer any other questions you may have.