Congratulations on taking the first steps! Sounds like you are on your way, but need to make some adjustments. Here are my suggestions:
1) Research online and find a weight loss calculator where you can input your age, height, weight and activity level to find the number of calories you need to consume to lose weight and/or maintain your weight. Regardless of exercise. These are great numbers to keep in mind when choosing what you eat.
2) Keep a food log and keep your calories down. And as another poster mentioned, those little things like butter and drinks add up!
3) Regarding food, I would definitely not cut out carbs completely. Keeping whole grains will provide the fuel you need when working out. I've lost weight on the low-carb plan, but have done significantly better when keeping whole grain good carbs in my diet. But not bread!
4) Add some strength training. Even if it's primarily body weight exercises, it's something and a good start. Small weights. Perhaps a weight class at your gym? You will not bulk up, but it will help you burn that fat.
5) Finally, consider how hard you are actually working out. Perhaps you could buy one of those watches that track calories burned based on your specific body data. You might be surprised and see that you need to amp things up. I had this problem at one point.
That's all for now! I have to plan meals, exercise and such each day in order to successfully lose weight. It's a lot of work! But, if you can make it a priority you will see results. Good luck to you and keep up the hard work!