While I certainly would like to help you with your weight loss and fitness, this article isn't going to sell you anything. Instead, I'm going to point out two myths about weight loss that can actually result in you gaining weight, negatively impacting your health, and cause you to spiral out of control.
Myth #1 - Reduced calorie intake will result in weight loss.
Yes, reducing the number of calories you eat each day will result in weight loss, but not the right kind of weight loss, and not for very long, and not in a sustainable way. Ok, that's a lot of "nots" that have to be unpacked. First, when you reduce your calorie intake, your body has to do something to get the energy needed to fuel the cells in your muscles and organs. And initially, it goes after fat for that energy, so you start to lose weight. However, after a short while, your body gets the message that food will not be coming, so it goes into starvation mode. Due to evolutionary adaptations and selection, our bodies have learned to protect us from famine by slowing down our metabolism when our calorie intake is reduced. (That way, we'll still have enough stored energy to keep us alive until the "famine" is over and food is available again.)
Myth #2 - Cutting carbohydrates out of your diet is the best way to lose weight.
Cutting carbs completely out of our diets was popularized by the "Atkins" and "South Beach" Diets. The idea that carbs are evil took the world by storm, especially when it was paired with the idea that you could eat all the fat and protein you wanted. It is true that if you cut an entire macro nutrient out of your diet, you will probably lose weight. The problem is that carbohydrates are necessary for proper body function. Your brain, muscles and all of your cells rely on glucose for energy. While your body can convert fat, and protein to glucose, it's not very efficient. The easiest way to get that glucose is through consuming carbohydrates. In the absence of sufficient carbohydrates, the body will resort to consuming muscle tissue in order to rapidly provide energy. Obviously, if your body is consuming it's own muscle tissue, your muscles will lose mass, and that means your muscles burn fewer calories.