I used to have the same obsession over the scale.
How I got rid of that obsession? By literally getting rid of it. I gave my scale to my mom telling her I will be at her place once a week only, to weight myself and that I was not allowed to come more often. She understood and guess what?
She gave me back my scale after a month cause I was cured
Hang on! plateaus NEVER last if you stay on track you will start loosing again