This sounds like a job for... NSVs!
If the scale is causing you woe, then create a couple of mini-goals that have nothing to do with the scale.
Exercise 3 days this week.
Successfully complete a new movement activity you've never done before.
Eat on plan for 7 days in a row.
Find 3 new healthy and on plan recipes to make.
Try a new fruit or vegetable.
Increase the intensity of a work out.
All these things are fitness related, while not having ANYTHING to do with the scale telling you about your success. They're straight up actions. You do them, you complete them and you succeed! And you can set yourself up week after week with goals like this.
~Made of star stuff~