Ever have a day that makes you feel like this?

Poor Tink. No amount of Pixie Dust or
"I DO believe in fairies" can repair her pelvis, torn in two by Lilly as she attempted to dress her in Ariel's mermaid tail. Normally, I'd bet on the Neverland fairy in a Tinkerbell-Ariel smack-down, but I guess Ariel was having a good day.
And Tinkerbell wasn't.
Neither was I.
I feel like Tink today. For a couple weeks, I've been stuck at 29 pounds lost. Finally, yesterday, I hit 31 lost, only to land back at 29 this morning. Even with all my hard work, self-deprivation, healthy eating, running, swimming, consistency, and fitness goals reached, my body fat percentage is still, in my opinion, astronomical.
To top it all off, I attended a new fitness class yesterday and, well,
I'm just sore.This morning, my trainer and I confabbed and she outlined a whole new strength training program for me. She said I'd graduated: no more machines, only free weights.
I start the new regimen tomorrow. I'm tired. I can only hope this works. I'd like to get to 40 pounds lost.
Encouragement? Tips? Ideas to pull me up out of this pesky plateau and body fat funk? Thanks, dear reader. Your opinions, to me, are worth their weight in Pixie Dust.