Hello, I would like to join too please, I know it's rather late, sorry! I have a lot to lose, I'm 101 kilos and ultimately need to get to about 70, but that is much too daunting so my first goal is 90, which was my weight before an ankle sprain lead to three surgeries and severe post traumatic arthritis. Actually maybe my first goal is just the first kilo!
I am desperately lacking motivation, am actually quite miserable about having to do this but I have to because I have an another injury that won't heal... I have torn muscles and tendon in my hip and bum and basically I can't sit without massive pain. I can't walk very far either. You'd think that would be motivation enough but it's so hard! And it feels like it will take so long! I reckon a year... When I will spend the whole time thinking about what I can't eat! Aargh! Sorry for being negative. I am actually really impressed to see all the losses here but I just read it and think I could never do that 
My best diet success was a non-diet - I went to Australia for 6 weeks and spent half the time eating really healthily because I was staying with family and that's how they ate, and the rest of the time drinking iced coffees with whipped cream and ice cream on top and eating chocolate cake and chips! Reader, I came home 3 kilos lighter!
At the moment I am just calorie counting on mfp but I'm wondering if something like slimming world might suit me better as I think I could eat more (of the right things!). Would have to do it online though as there is no way I want to talk about this in real life! Have thought about low carb but there is no way I could give up the sugar in my tea! I like real food and am not keen on things like low fat yoghurt filled with sweeteners.
I think I am doing it all wrong - I am on 1500 calories but no calories left for treats on Tuesday or Wednesday so in a fit of rebellion I have just scoffed a packet of 5 chocolate chip oat cookies 
Oh and my scales are really crappy... I can be 99 kilos one minute and back to 101 the next. Can anyone recommend a good set of scales? Though in fact I'm not sure if it's the scales or maybe that my floors are not flat (old house).
Sorry for waffling on. Hope to be back with good news in a more succinct form 