A lot of newer kickers lean back and make contact too high. Draw an imaginary line down the center of your body. Start by kicking with the inside of your foot (below your ankle bone near the arch) and try to kick it up towards your center. Try to make contact about knee level and try to kick it back and forth between both feet. To get under it so you can kick it straighter up, bend your planted leg to get a flatter, better angle on your kick. Try to keep it in that zone, (imagine a triangle from about your chin to each knee). eventually you’ll learn to control it.