What a great question!
If you are feeling that you are just going through the motions...the good news is that you can make a change. Just imagine.
Imagine what life could be like if you stopped being on automatic pilot when you got home in the evening - cooking dinner, dealing with the kids and watching TV. What if you tried a new recipe, spent quality time with your children - refusing to give in to video games, the Internet, or the TV (several years ago, we got rid of every TV in the house for almost a year).
Imagine if you set fear aside and did the things that you long to do. What could your life be like if you let your heart pound and your hands get sweaty, but went ahead and did it anyway (whatever your "it" is).
Imagine if you made your health, and the health of your family, your number one priority. Refusing to be swayed by easy, cheap meals or unhealthy snacks. Imagine if you went to bed early so you could exercise in the morning. Imagine if you skipped the local sandwich shop for lunch and went for a walk instead.
Here's hoping that you do!