I'm so glad I found this site. I'm on the 5:2 diet and its going okay ish. Started at 120 kg. Now I weigh over 105 kg. I just find that whenever I get some success I tend not to believe that I can really achieve the full weight loss. So I seem to stop and put it all on again. Only more. I know it's yo-yo dieting. It's more of a psychological thing. I'm 55 and when I was younger I was soooo fit and weighed only 11 stone. I have a target of 85 kg which is my healthy weight. I'm so frightened I won't achieve it. Anyone else feel like this?