If you apply this drill consistently you will improve your kicking tremendously./
Strengthen the hip and through various kicking motions. Be in a roundhouse / side kick stance and draw circles. Pivot your feet so that the heels are facing forward. Aim for 20-30 reps and then switch sides. Work on chambering the leg and kicking out like a donkey kick. Aim for 20-30 reps. Chamber the leg and again and work on snap kick motion for another 20-30 reps.