In my experience, it is difficult to make a lot of changes at the same time, so my 2c's worth of advice is: Choose ONE change you can make, and stick with it before you add another change.
It could be something as simple as adding more fruits or vegetables, or avoiding processed foods.
OR, if exercise is more important to you for now, start by finding an activity you enjoy, and stick with that for a while before you add another activity.
Weight loss and becoming more aware of healthy eating habits is a journey, and like any journey, it begins with one step.
4/15/12 Platte River half marathon - Done
5/4/12 Greenland 50K - Done
7/29/12 Loveland Little Sprint Triathlon - Done
9/3/12 (54th birthday) - American Discovery Trail marathon
11/4/12 NYC marathon
12/1/12 Rock Canyon Half marathon