I'm 20 years old, m 68 kgs and 5.5 feet , want to reduce my hips, thighs, waist, tummy *** give me suggestions??

Diet and exercise...
Try pilates and walking
Cut out fast food, processed food (ie TV dinners) and eating out
You can still eat fat surgar and carbs, just don't eat processed food

If you take that advice, it should help you