Push-ups on Monday: 5 groups of 20-30 sit-ups, 3 groups of 30-50 sit-ups and 3 groups of 30-50 legs.
On Tuesday, there are about 5 groups 10 pull-ups (it is difficult for those who have the ability to work harder), 3 groups with 30-50 sit-ups and 3 groups with 30-50 leg lifts.
On Wednesday, five groups of squats (I don't know how heavy your dumbbells are) can't get up with their hands. It is a set of sit-ups, three sets of 30-50 sit-ups and three sets of 30-50 leg lifts.
You can have a day off on Thursday, Friday, Saturday and Sunday. Exercise for about 30 minutes every day, you can eat a beef fire or three or four eggs (you don't have to eat egg yolk, it doesn't matter much to lose weight) and a glass of milk.
This is an exercise method without equipment. In fact, you can use dumbbells to exercise your whole body. At present, your plan is only to exercise your chest, back, thighs, abdomen and heart and lung. If you are interested in exercising your whole body, you can go to the fitness bar for a walk. There is a teaching video of dumbbell exercise. You learn very well (begin)