This may sound very "worldly" but if I'm being totally honest, I have to admit my two greatest motives for fitness right now are 1. being single and 2. being cheap and poor. I figure I'll NEVER find someone if I don't try to stay in shape and I'm also finding out that prevention (preserving your health) is a WHOLE lot less expensive than having things go wrong and then trying to pay doctors to fix it.
Zero, don't give up!! I know it's terribly frustrating. Over almost 3 months, I've only lost 6 pounds and like you, I have sometimes wished I'm anorexic... but obviously, that would only cause a whole host of problems in the other direction...
I wish everyone lived closer--it would be really fun to start some kind of fitness group. I could use some tips when it comes to the free weights... My ex was studying to be a trainer (this was years ago) and the first week I tried the routine he made for me, I literally hobbled into work and everyone thought I'd fallen down a flight of stairs. But the next week, it got easier...
Now I just rely on walking and the elliptical trainer (the "hamster wheel", because I feel like a little hamster running in a wheel when I'm on it). I actually hope to meet a guy someday who's a bit of a drill sergeant in this area--someone I can work out with and who kind of barks at me to go with him to the gym (but in a respectful way! You know, something like, "Look Babe, I know you can do an extra set of reps today--you've trained hard, and I know you can do it," NOT, "Hey, Pillow Butt, let's get the flab moving right on out to the gym! Roll out that spare tire and let's get going!!") Um, NOT exactly edifying or motivating...