Just had a read through your diary, well done with your weightloss so far! You're doing really well.
You asked for tips, here are the few I have, not that I think you need tips as you're already doing an excellent job...
1. When times are tough and you feel like giving in, just remember you were probably unhappier when you were bigger and that meal you want to eat isn't going to help you feel any happier in the long run (I tell myself this almost weekly haha).
2. Make small targets, it's easier and a bit more fun that way.  I'm sure I read you're under 30 so you could make one of your main targets to be at your ideal weight for your 30th birthday depending on how far away it is.  
3. One meal off plan isn't a crime, going out and having a drink is fine.  You shouldn't restrict yourself as a little bit of what you like is good for you.  This is a life style change not a diet so a little bit of what you enjoy isn't off plan just count it into your syns 
Hope that's kinda what you were looking for.  Good luck with your journey x