I also started doing home exercise programs and found them to be highly effective. No more money and hours wasted at the gym. But now for maintenance, I only do high-intensity interval exercises with basic equipment (dumbbells, kettlebells, bodyweight) at home. Only 20-30 minutes for 3-4 days a week will keep your metabolism high and continue to burn fat throughout the day.
On this site you will find a huge database of the nutritional values of just about any food you can think of. It also has a database of the calories burned in exercises as well as normal daily activities. There are tools to help you figure out your caloric needs for a day (these are generalized so they will be a good starting point for you. Mine are very different than the standard but I started with these numbers and adjusted up or down as needed to achieve weight loss at the speed I felt was healthy)
Probably. If you have overweight or obesity, your risk for many health problems is higher than that of women who are at a normal weight. Even a small amount of weight loss can lower your risk for or even prevent health problems like diabetes and heart disease. Calculate your body mass index (BMI) to see whether you’re at a healthy weight. If you have overweight or obesity, start by making small changes to your eating habits and getting more physical activity.