Hello, may I join please - you seem like a friendly, knowledgeable bunch. 
I've been doing a meal replacement diet for the last four months, so 800cals a day. I went from 15st to 12st 8lb quite easily, but have been stuck in the 12st 3lb-8lb for the past two months (mostly because i keep on having weekends off and going way over board). I'd like to get a healthy BMI (11st 12lb) by the end of this month and then switch to eating normal food. Ultimately, I'd like to get down to 11st 3lb-7lb as my comfort zone. (My pre-pregnancy weight was 11st, but that was ten years ago and I think it's setting myself up to fail if I target that).
I did the C25k plan, but then have read lots of people say that if you do hard exercise on an 800 plan, you won't lose, so I stopped.
I'm feeling a little lost/confused about how to get off the meal replacements and onto normal food, and then how to lose that last half stone. I need to start exercising again, as it's good for my mental health.
Whilst I'm pleased with the weight loss, I still feel desperately uncomfortable with my size, and really want to get to my goal before I start seeing people again, because I hate being told I look great when I don't feel it.
Sorry, that's a lot of introduction and TMI. But hello! Thank you for having me!