So three meals a day is normal, and walking for 30 minutes has little effect on weight loss.
To lose weight, we must first control our diet, eat less high-calorie food, and then keep exercising. There are many slimming methods for different parts of fat on the Internet, which are usually in groups of several actions, and the time is about 10 minute. Insist on doing several groups every day, plus a reasonable diet. As long as you persist, it is not difficult to lose weight, but remember not to rush for success. Perseverance is the best way.
In addition, if you are not very clear about your daily calorie intake and consumption, many gyms have special instruments to help you test, which will help you lose weight better.