belezura: My mom is notorious for having a "one day at a time" attitude, and she reminds me of that motto constantly. Thanks for reminding me too!

I've always had a feeling that I tend to overrationalize everything, and look at the big picture way more than the small things. I know that that can be a problem, because it's the whole reason I procrastinate with other areas of my life... I just get overwhelmed with the big picture.
sweetcakes736: 18 years, wow! Congrats! That really is beating the odds these days! My parents are divorced, so maybe that's partially why I'm just a little cynical and try to be "realistic" with expectations. Unfortunately, being realistic usually = failure, so maybe people like me need to believe in things more.
Heather: Thank you! Very helpful info! I'm still a relative newbie. My ride has been one up and one down, so it's not the roller-coaster a lot of people have been through. I still need to experiment more to find out what I can actually stick to, but it's hard. I feel like I'm overcoming an addiction to bad food and I'm not sure what to do. I tried being "reasonable" last time and allowing myself all the things I've always loved in "moderation", but moderation didn't seem to work. I'd always crave more and more and then give in.
Kaplods: Thank you SOO much for sharing your experience! 80 lbs in 4 years is definitely something to be proud of. You didn't gain, and you didn't even maintain. You lost. Which is what counts. At least the one thing good about having a realistic mentality is I'm not caught up in the fairytale that weight just flies off fast, for most people. I've accepted it's going to be a slow slow slow process, and I'm ok with that. I don't have anyone to impress in a hurry. I'm not at risk of dying tomorrow. So I don't mind.
The challenge I feel like I have to overcome is my own belief in myself. When you have such a lousy track record, like being a full grown adult and STILL not able to just kick such an easy habit like biting my nails, I worry what my chances are of kicking a whole slew of bad habits related to my weight. Everyone always says you have to WANT it THAT badly. I wondered if maybe that's the secret. Maybe I just don't want it enough. But that's ridiculous. I do want it. I worked my butt off for several months. Everything was going great! I was making slow but steady progress. And then... for some reason, I just let all my awareness go. I skipped a day of counting calories, told myself it'd be ok, I'd make up for it the next day. But then I skipped again. And again. And again. I stopped cooking/trying new things. Etc. And I look back and want to ask myself what I was thinking! But that's just it. I wasn't thinking. And I'm not sure why.
I heard somewhere that if you implement a good habit in place of a bad one, for at least 28 days, it becomes permanent/second nature. That just doesn't seem to be the case with me. It seems like I require CONSTANT self-vigilance. I always have to think of new ways to FORCE myself to be aware of what I'm doing, all the time. It's like literally NEEDING an alarm clock to wake up at the same time every morning, every day, for the rest of your life... instead of your body eventually getting used to that sleep rhythm and taking care of itself. That's how I feel about my body and my awareness and my hunger. It can never become second nature for me. Maybe I just have to accept that.
yoyoma: You seem to be really self-aware of your own rhythm. That's excellent! Knowing is half the battle, right? I'm not sure if I know what set point theory is... is that the idea that your body just wants/needs to be at a certain weight, and will resist any change contrary to that? If so, that's another thing that worries me. Ack! For 99% of my life, I've never done anything but slowly gain gain gain, so who knows what that weight is for me.