I have put on 8 kilos over the last year and in Jan I have been using the NHS better health app to try to lose weight. But it’s just not happening for me. I eat around 1400 calories a day and I do hiit workouts and I go for walks. I thought that given I have a fair bit of excess weight the first couple of kilos would come off really fast, but they haven’t. I am making a concerted effort with counting calories and being active. Where could I be going wrong?