Let the walking begin

So I was ready, I had a place, time, shoes, ipod & motivation. I'm can do this. I actually don't think I did too bad the first few times. I walked for 20 minutes at a time (about a mile), 3 days that week. When my second week started, I was already trying to talk my self out of it. I didn't like the treadmill. I didn't like sharing the gym with others. While I like the people that came in, I just didn't like walking with people being there. I was self conscious I think. Anyway, I stuck with it for about 2 weeks. I had worked up to 30 mins about 1.5 miles. Then I missed a day because of a meeting. Then another day because I forgot my shoes. Then another day because well I don't even remember why. The next thing I knew, nearly a month had gone by and I was walking maybe once a week. Ugghhh! I wasn't supposed to let this happen but I knew why it did. I didn't like it. It was boring. So now what?