If there's one thing you can learn from reality television, it's that maintaining weight loss isn't easy. Even if you're not going full Biggest Loser, the crazy-making battle with those last 10, 20, or even 50lbs you're trying to lose largely isn't your fault.
That's the good news! Your body and brain really, really don't want you to lose weight (WHAT IF THERE'S A FAMINE?). As a psychotherapist with experience dealing with eating disorders -- and who used to be a personal trainer -- I'm familiar with the many mental roadblocks people set up for themselves when attempting to make any lasting change, and losing weight in particular requires the right mindset as much as physical dedication.
So if you find yourself falling into any of the following traps, stop for a second, realize you're shooting yourself in the foot, and remember that the best way to drop weight is by eating a balanced diet of real food, and making sure you don't lie around on the couch all day.
I'm only going to eat pea shoots and canned salmon between now and forever
This is called setting yourself up for failure -- it's impossible to sustain for more than a couple days. Like juicing, the Master Cleanse, the cabbage soup diet, the grapefruit diet, the Dukan Diet, etc., etc., you WILL lose weight after following it for a few days. But you'll also set yourself up for gaining it all back (and then some).