These are some of my experiences, which I hope will be helpful to you.
First, learn to chew slowly. Many beautiful girls have such a bad habit. When they are hungry, they tend to gulp down more than half of the food on the table at once, regardless of their image. However, when you eat like this until you feel full, you are already full!
Second, take a walk after dinner. People who want to lose weight should form the good habit of walking after meals. The correct way to walk should be to hold your chest out, swing your upper limbs rhythmically with your footsteps, take a straight line, and don't turn left and right.
Third, at least 500ml in the morning and at least 500ml in the afternoon. (generally disposable cups is 150ml).
Fourth, always look at food labels. Generally speaking, the energy of vegetables and fruits is 50 kcal per100g. If the energy in the food label you see is around 130 kcal, which is much larger than the energy of fruits and vegetables, or even much larger than the energy of meat, then eating this is equivalent to eating more energy than meat or even fat. Be careful.
The most effective way to exercise chest muscles with dumbbells is to lie on your back and bend your arms and stretch your arms.