Have you ever done any exercise in your life before? Obviously not because once again, you’re not doing it correctly! Do I have to explain everything to you?
Do another 25 sit-ups and this time, make sure that your legs are bent at a 90 degree angle, your feet never leave the ground (wedge them under something if you have to), put your hands behind your head and make sure your elbows reach your knees every time.
[20 seconds rest]