Confusion about changing circumstance

Brooke, you say that we cant change the C line and should learn to create results without changing the C line.

I’m a little confused.. I dont think I’m understanding this correctly.

In this model:
C: I weigh 208 lbs
T: I will lose weight if I follow my protocol
F: Determined, confident
A: Follow protocol
R: lose weight

I know that if I believe the thought above, I will lose weight. But the result I want is to lose weight. So if I get my result, I’m changing the circumstance.
Am I not?

I’d appreciate a clarification.