How many first days can one woman have?!

I know lots of people can relate to this. I am starting the first day of a new plan to lose weight and get fit today. I am 12 stones and 8 1/2 pounds. The least I have been as a grown up is 12 pounds less than that and that was 2 1/2 years ago. I am sick of it. I want to do it but think I am also scared of losing weight. I don't know why. This time I want to get past that and be 'normal'. Here goes.....