I must admit I watched Biggest Loser last night for the first time ever. I wouldn't watch before because I thought I knew I would feel guilty for not doing anything about my weight while watching those people be successful. It was easier to watch another program and have a snack.
Counting calories is definitely working for me also. I started at the end of August and as of today I have lost 55 lbs. I've found that daily logging of ALL calories has really helped. And yes you must be honest with yourself and carefully weigh and measure everything. I didn't do that at first, just estimated and when I did start to weigh and measure I found I don't estimate nearly as well as I thought.
And yes, as much as I would like to lose it faster, I've been on many "fast" diets lost 100+ lbs quickly, but put it back on just as quickly. When I did those diets always in my head was the idea that once I finished I could go back to eating "regular" food. It's taken me a long time, but I think I've finally accepted the fact that I can never again eat the way I have in the past, so I'm trying my best to think and refer to this as a lifestyle change, rather than a diet. My motivation comes mainly from thinking about all the things I can't do and what I'm missing in life because of my weight.
Here's a thought to help you with your motivation .... Believe me you do not want to be 57 years old like me and be regretting all the wasted years of missed activities, relationships, jobs, etc. due to being too heavy.
Good luck to you & here's some

for you.