Well done Fern!!! That is AMAZING!!!
You truly do have to get to where you want to be.
Personally, I know that at 11 stone I was a 12-14, so I want to get back to there first, and see how I feel. I have a vague target in my head of 10 stone, but I know that may well be unrealistic. I think I need to see how I go, and I will find the size I'm happy with when I get there.
Also, my lovely OH doesn't like skinny skinny girls, so he'll soon tell me I look ill if I lose too much. Also, my mother and my Nanny are very much pro me losing weight but they'll also tell me if I go too far. I have lots of support and honesty around me, which is great.
Good luck hun... I'd love to be a size 10... and you may find joining the gym ups your weight as you develop muscle.