The name of the amino acid is tryptophan. Most of the time, I find people are not getting results because they create meals with nothing but carbohydrates. You must have protein to support the muscle. Muscles burn calories more efficiently, which is why protein is so important. Processed foods and soft drinks rob our bodies of B vitamins, which enable us to lose body fat.
Water is necessary for every process in the body, especially the fat burning process.
Your body knows what to do with water. I was thinking about taking Latin dance lessons. Any dance movement should work your cardiovascular system. I feel like I have to do something everyday to keep my body fat down. So if your class only meets once or twice a week, you might want to find another activity to do on the other days.