Hey there, don't worry. You think it is going to be hard but after the first 2 days you get into a comfot zone and it is easy. I was 16st 7lbs when I started and needed to do something. I did SS for 7 weeks and went down to the 13 stones. My CDC asked me to do SS+ for a week just so I wouldn't be afraid of food and I lost 4.5lbs that week and stayed on it. This last week was my 810 week and I am firmly in the 12 stones and no longer overweight!! I am going to stay 810 till I get to 12 stones exactly and then move up the plans. It has flown by and was nowhere near as hard as I thought it would be, or more importantly what others said it would be.
Go for it, it will work regardless and it is so so worth it!! It is 4 months ou of my life and I now have the body I had 5 years ago and importantly it has forced me to reassess my eating habits.
My only query now is what exercise regime to follow when I am back on food full time!!!!!