On the other hand making what might seem like laughably small changes can be the key to sustained success. When I started Weight Watchers back in July of 2010 if I only let myself think about the total amount of weight I needed to lose for about eight and a half seconds. After that I focused on the smaller goals and making small changes so that I wouldn't get overwhelmed and so that I could change the routines and behaviors that had become so ingrained in me over the years.
When you think about behaviors, something you've done for years, changing the way you perform the behavior may be easy at first because it's new and exciting but after a week or more life sort of takes over and work gets busy or the family is demanding more and more of your time and soon you're falling into the routines and behaviors that feel comfortable, aka your old behaviors, because they are easy.
However, if you make small changes to build new routines and behaviors then even when life gets busy you are well on your way to continuing on with your new healthy routines and healthier behaviors. That said, don't distress if you still revert back to old habits from time to time. The key is to get back into your new behaviors as soon as you can. You can also make small changes even while in the midst of your unhealthy behaviors. Realizing that you've made an unhealthy choice is the first step. Then get right back on track with your next food/activity choice which can put you back in control of your weight loss.
What small changes have you made recently or are you planning on making?