Yeah... practice. Every day. And you will see improvement.
Get the fundamentals first though. Juggling will help your ball control, so although it is a skill to look cool amongst normal people, it actually does benefit your playing.
And play in actual games. The more you play the more comfortable you'll get with it.
Though I really don't get asking for tips on sports online, It's ultimately just you and practice. Just go outside whenever you can and drill yourself, and control will come naturally. The rest of how good you are will depend on your natural talent, ha.
Ghan has said he has fixed this. Monovertex please confirm this fix. This was only a problem with people that had signatures in the upper levels like not the special members but the respected members.