Why do I feel like this isn't happening..?

I don't know; but I feel the same way --often. I've only lost 15 pounds (7 since starting MFP) and I just feel like it's exactly the same. My clothes are much more comfortable, I was fitted into a smaller dress size when I bought my wedding gown, people have been complimenting me, but I just can't see it.
BUT...imagine if you (or I) had gained 12 pounds (or 15)! We'd both be singing a different tune. I think we need to focus on our success and silence the inner critic