Being healthy

I don't understand what I'm doing wrong. I can't figure it out. I've been drinking veggie juices in the morning that I make. Normally use a cup or two of spinach... Celery, carrots, lemon, kale, banana and apples. Then I normally eat a bagel or something then I won't eat until lunch.... Durring lunch I normally eat turkey or something it have another juice and instead of losing any weight I've gained weight. I'm so frustrated :( what am I doing wrong