Feel like crying....

I just don't understand. I am trying so hard. So hard. I have COMPLETELY changed the way I eat. Eating what I thought was a healthy low calorie diet. Lots of grilled fish, veggies, egg whites, grilled chicken...etc. Drinking my liquids everyday. Getting my proteins. I was so proud. I'm getting up and moving EVERY day for at least 30 minutes. I thought that was a pretty good start. The problem is I'm not losing weight. The scale is moving back up. What do I do? I'm trying so hard to do it right. I'm getting so frustrated and scared. I don't know what to do.....