Plan for half marathon

I signed up for the Glass City Half Marathon on April 22nd. I am starting my training today. My official marathon training starts at the beginning of February but I am starting today to get myself comfortable at the 3 mile distance. I'm going to run 1 mile for a couple of weeks, 2 miles for a couple of weeks, then 3 miles for a week or so. At that point the official training starts. I have it all mapped out on a calendar so I am ready and pumped. I'm really excited for this race. I attempted it last year but health issues got in the way. I am healthy, 50 years old, and ready for the challenge! Wish me luck!!!