Welcome back. Yes we look back and see what we could have done but didn't do it, but just look forward and say this is what I want to do and before you know it you will reach your goal. I am glad to meet you.
As for HOW I have lost the 180# I've so far lost.... I did have a weight loss surgery 11 years ago. It was moderately successful, but also caused many, many complications requiring 4 additional surgeries. But the weight came back on (70# of it, anyway). So I've spent the last year working with a trainer, sweating at the gym, and educating myself on fitness and nutrition. I didn't realize how under-educated I was! I'm now learning how to lose the rest of this weight, and keep it off FOR GOOD! All my re-gained weight is gone, so now I'm moving on to lose even more!