Almost tried every fitness app imaginable, but the only thing that worked for me is yo just get out of the house everyday, every morning, either for run or go to the gym (Doing push/pull/cardio split). I stopped doing any exercise in the house, there's just too much distractions and the fact that the fridge is just a walk a way. I really made it habit to sweat out outside the house. Nutrition is a tricky part, and I'm not the one who completely rid of carbs, it's actually not good, at least for me. I actually follow the 1.healthy fats (avocadoes, nuts, fish), 2.protein (chicken), 3.carbs (sweet potatoes) formula everytime I prepare my meals. I'll admit I'm always on the lookout for recipes to vary the taste and have variation in the palate, at least that's how I work on the nutrition part.
