I know what really helped me for awhile was to graph my weight. I was a daily weigher and am getting back into that habit. When I was actively losing, sometimes it would seem like I wasn't making any progress because the scale was bouncing around. But I would faithfully record it on the graph and sure enough, I had a downward trend going. Sometimes it's just hard to see it when we are so focused on the weight part of the journey.
I really like Eliana's approach of being committed to being on plan for a specified period of time, no matter what. This really does seem like it would take the pressure off wanting the scale to move on a daily basis.
As far as keeping myself on track--well, if I had that part down pat, I wouldn't have gained 15 pounds since February.

But I'm back on track now, and I'll keep myself there because now I have recent experience with what happens when I'm NOT on track. I gain. I may not lose as quickly as I like when I am on track, but it's sure better than gaining!