I personally hate the low-carb craze mostly because while yes you are losing weight, you are losing so much other stuff like energy and muscle. You feel and become weaker and while you look skinnier and are losing weight, there are better ways to diet. Nothing wrong with red meat if you are afraid its too much fat, get lean cuts and eat in moderation. That's all dieting is, moderating the amount of food you put in your body. What time do you go to bed? There is nothing wrong with a late night meal as long as its not purely carbs. Limiting carbs later at night is better than limiting carbs at alll, there's really no reason to go low carb but I guess if it worked it worked. If the low carb thing isn't working anymore try something new, switching up diets is always good as it changes your metabolism and stuff.