Being you mentioned that you`d tried everything – working your ass off, different `diets`, etc., and the problems with re-gains are usually noticed once people start eating carbs, I would still suggest that you try journaling your food choices and removing the carbs. Then find a good balance between your proteins, fats and carbs, relearn the `rules`of 5-5-5, not drinking for at least 15 minutes before a meal, and up to 2 hrs after (and of course, not drinking with a meal) as well as continuing your exercise. The combination of these things should restart your weight loss journey.
Exercise is a large part of the new healthy life style but re-thinking what you allow to go in your mouth is very important as if you don`t stop the cravings you will gain, pretty well guaranteed, exercise or not. I haven`t noticed a lot of posts from the thousands I`ve read that indicate people aren`t exercising and are only relying on having a smaller stomach to make their goals. I believe many people may be exercising, but that`s just not where their questions are; they are asking diet, nutrition, questions from this site, but don`t need to know how many push ups to do; they want to know what foods, what vitamins are good for us.
Doing the 5dpt certainly isn`t going to hurt you; it was designed exactly for the purpose of giving you that full sensation you are familiar with from when you were a newbie and for killing the carb cravings. Use the internet and research wls food choices, bmi, exercise, etc to give you the information you need to be successful.
And, WW may be there to make money, but I hate to tell you, doctors do it for money too………I haven`t seen a WW meeting or a doctor that will perform their weight loss services for free. Sorry, but that`s a fact.