You might also consider blending instead of juicing. Blending the edible parts of fruits produces a drink that contains more healthy phytonutrients and fiber. And fiber can help you feel full.
If you do try juicing, make only as much juice as you can drink at one time because fresh squeezed juice can quickly develop harmful bacteria. If you buy commercially produced fresh juice, select a pasteurized product.
Also keep in mind that juices may contain more sugar than you realize, and if you aren't careful, these extra calories can lead to weight gain.