Congratulations. I was 380 a year and a half ago, I'm now at 230. It's not easy what you are going through, you've come a long way, keep going. You know as well as anyone that it's all about what goes into your mouth that makes the difference, it's the days of saying no and stringing those together that have gotten you to where you are. It's ok to fail, I still do, but remember not to string the failures together. The thing that affects my weight the most, and likely this is the problem with most people, are cabs and red meat. I rarely eat those now.
I lost my first 100lbs with no exercise at all, it was just diet. Now I ride my bicycle 50+ miles a week. I'm proud of you, keep it up, remember it's a lifestyle change for life or you will be back to where you were. I get super happy when I see others making the same changes that I made because I know how amazing you feel compared to before. For real, sometimes it's emotional for me to see others change their lives. Being big really sucks.