Drink a can of strong yogurt on an empty stomach in the morning, don't eat anything else, eat less at night, mainly eat fruit, don't eat starch, and find some fast slimming exercises online. It should be possible.

Thick thighs can do exercise. Very effective. Keep squatting for 30 seconds. This is a group. You must do five groups at a time. Just stick to it every day. Also, sitting in a chair every day, you can only sit in the first third, and then sit with your legs together at a 90-degree angle to the ground. Hold on for 30 minutes. You must put your legs together.