Running sit-ups practicing running every day is a warm-up, and sit-ups are the finishing touch.
Push-ups one day, pull-ups one day, simple and effective.
Pull-ups don't work. You can hang them for a while.
Of course, there are dumbbells or something, and you can also combine them yourself.
Pay attention to dinner when eating, just eat 7-8 minutes full, and eat less greasy things.