Getting started is tough. I had declared to myself that I'm going to start today bit didn't. Then with out thinking about it I went running.
Now I'm addicted to running. My mood sours when I don't run. It really helped me to log my weight and what I eat. The history tells the story. I've lost 20 lbs and an easy run ( light day) is 5K. When I started I couldn't have imagined that.
You can do this.