Oh girl, I'm right there with you. It's a total mind f*ck. I tell myself I won't weigh. Then I weigh. I hit the dreaded 3 week stall and am frustrated. I'm about to put my scale in a closet in another room to take away the fact that it's staring at me in the bathroom every morning.
I think we are just so anxious to be further along in the journey, with the results to show for it. For me - I also think there is a bit of amazement that it is working and fear when the scale doesn't move that maybe it's NOT working. I just need to chill, trust the process and focus on what I can control. Water, protein, vitamins and nutrition in general, and movement.