I know what you mean. When you're in the middle of it you just see the distance to go, and of course all the "failures" and problems. You forget the achievements and how it must look to someone who's not living it every day. Congratulations, that's a great NSV, and I hope it reminds you of what you've achieved.
My NSV is that my Evans pyjama bottoms were falling off me. My new pair came from......*drumroll*.....Marks and Spencer! And not the fat range! YAY! They are so much softer and warmer than the Evans ones. What have I been missing all this time? They are a size 22, which of course is generous at Markses, so I guess I'm really around the middle-low end of size 24. Brilliant!
EDIT: Plus, despite TOTM and retaining a reservoir's-worth of water, I managed to lose a pound this week! I was really pleased with that. I thought the girls were going to explode at one point. I hate water retention. >:/