I don't know why I cant stick with this!

I did something different this time, I actually WROTE my reasons for this
challenge and specifically detailed several patterns of action that I know I
need to change. I also wrote down a few rewards I will do for myself when I
reach some milestones (one, two, three months of discipline etc). If I can
stick to my plan for eight weeks I am going to reward myself with something I
have wanted to do my entire life...learn to surf!

My husband and my long time friend are also restarting tomorrow. Any hints on
how we can stick with it? For real this time??