At first, I was not good at football juggling, though I have played soccer. I had been one of the juggling beginners for a long time. But after I changed my way of practice, my juggling skills improved. Now. I can juggle several hundreds times using many parts of my body.
I realized that what is important is catch the ball at the center of my foot, or the lower part of my instep. If the ball I bounce with my instep goes straight up, my juggling will be stable.
The first step was a simple practice of dropping the soccer ball with my hands and letting it bounce on my instep. It was so simple but in changed my juggling skills.