Creating a habit

Well it has been said that it takes 21 days to make something a habit. So 7 down, 14 to go. I have done something active for the past 7 days. I have been to the gym several times, used my exercise bike, or taken a walk outside. But I did something everyday. I am very proud of myself because some of those days I didn't want to do anything. But then I would have to go to an ATM or mailbox - so I would walk instead of drive. 10 min here and there on the bike. But I did an extra 30 min worth of something active every day. I'm still checking the scale every morning, although I know I prob shouldn't. But it has been motivating me in the morning to do something. I like that every morning I have been getting a lower number. And I know that 10 min on the bike or taking the long way walking to the mailbox is what is making the difference. They tell you most people lose 3-5 pounds a week on this diet. Well I want the 5 pounds a week. I have the drive, I have the energy, I can do it!