How to do Russian twists: Sit up tall on the floor with your knees bent and feet off the ground. Hold a medicine ball with your hands at chest height. Lean backward with a long, tall spine, holding your torso at a 45-degree angle and keeping your arms a few inches away from your chest. From here, turn your torso to the right, pause and squeeze your right oblique muscles, then turn your torso to the left and pause to squeeze your left oblique muscles. The movement should come from your ribs and not your arms.
Cut back on calories. The most important part of losing weight is not working out until you collapse — it's your diet. If you burn 500 to 750 more calories than what you eat every day, you will lose 1–2 pounds every week (any more than that is considered unsafe weight loss). There are tons of little changes you can make to cut calories from your diet, from replacing high-calorie dressings with vinaigrette and asking for all dressings/sauces served on the side, eating at the table instead of in front of the tv, skipping cheese and other fatty additions to your salads and meals, using smaller plates, leave off the whipped cream on your coffee drink, and on and on.