psychology of weight loss

I have been at this weight loss life style change since last December. It started when I looked at picture of myself in Mexico on the beach and that was it for me. Dec. 26th I made a decision to find me, love me, and get healthy. I know how to do this becasue 8 years ago I started this journey and lost 50lbs. then spent the last 2 years gaining and losing 17 lbs. But today I realized I'm angry. Angry at the hard work it takes , angry at the guilt I feel if I miss a day of exercise, angry if I get sick, angry at the scales that have only moved 3lbs in the last few weeks. Angry that I've lost my joy. Angry that I'm still me even if I lose weight. This heady stuff.
You can easily get under the mistaken fantasy that you will somehow be different "if only" you could lose the weight. Just like the saying goes. "Wherever you go there you are". Well here I am and I'm finding me. And I don't think I've been so lost after all.