Thoughts…..40 lbs heavier than my actual weight!

I am at my goal weight which is 40 less than my heaviest weight. I achieved this by listening to your podcasts every morning while I work out. The weight seemed to melted away. However, my mind hasn’t kept up. It’s as if my mind doesn’t know how to be a thin person. It hijacks my joy of being thin by telling me “this is temporary, you will gain it back, you don’t really have control, don’t get on the scale, be afraid” etc.
How do I align my thoughts with my new weight?
Thank you.