shame about not losing weight

I have a 6 month follow up visit with my MD coming up and I know we will discuss (again) how losing weight would benefit my health.
I have lots of negative feeling that come up when I think about this appointment, including lots of shame.

C upcoming MD appt
T I should have lost weight by now
F shame
A reschedule MD visit for later date (I haven’t yet, but I want to)
R no behavior change/no progress

C upcoming MD appt
T my weight is not my worth
F ? (It helps me feels a little better, but there is still shame there)
A attend MD visit
R one more step toward better health

I am struggling with a thought that helps me get past the shame. Can you help me?