, congratulations on your phenomenal weight loss! Wow, girl!
I know just how you feel. I have the same issue. One of my problems is that I "feel" smaller, but I don't "see" myself as smaller. I definitely notice that I take up less space than before - I even feel shorter! But, I don't see it in the mirror.
One thing someone told me to do is to take "headless" photos of myself, so I can examine the body and not focus on the "person." I've held a sticker over my face in some photos to try it, but I think the photos are so familiar to me that it's not working well. I need to try it with some new, recent photos taken expressly for this purpose. Try it!
And, go out and purchase a new full length mirror, or walk around the mall and study yourself in store mirrors and reflective windows. If you see yourself in a new environment, maybe you'll "see" yourself differently. Hang in there!