Hi Petrina
Sorry you're feeling disappointed but you've done great so far - huge congrats for getting under the 10s!
Your CDC's right that losses often slow down as you get closer to goal, because the lighter you are the greater the % of your bodyweight you'll be losing for each lb off.
Keep going and try not to feel down, also if you haven't already read KD's sticky "measuring success by the scales" have a look as it's fab xx