Determined

So was talking to my best friend today and she mentioned she was using this site and she was doing really well with it. I don't know why I stopped using it other then laziness. I have had a lot of recent changes in my life and have gotten way of track. I stepped on the scale the other day and was extremely mad at myself. I am up to 212 pounds!! I have not been this heavy since my first child. So here I am back and extremely determined to get back on track. Any advice would be great. I don't have a gym membership anymore and don't see one in the near future either. That was a big key to my success in the past but in the last 7 months of not having it I have gotten lazy and the scale shows it.