Balance is difficult to achieve when you feel distracted. It is important to choose the food and the kind of exercise that is right for you. As an individual that depends on balance, you might do well learning some meditation practice - no matter how big or how small the practice, it will aid you tremendously. Some aspects of yoga involve meditation, and you can find online classes or tutorials that fit your needs. A more expanded technique is Transcendental Meditation, or TM.