Fat loss and disorders eating history?

Learned helplessness with losing weight

When I was in middle school 12, 5”7 and 168lbs I discovered the BMI system and it told 12 year old me I was overweight. I started tracking my calories eating 100-600 cals a day and binge and restricting. Sometimes eating something and then waiting 30 minutes for it to “digest” and then working out. This lasted from 7-10 grade. During this time I went from 168-140 lbs. during the pandemic I discovered Uber Eats and developed PCOS ans went from 160 in early 2020 to 220 now in 2026 at almost 20 years old I’m fat and I need to go back to 160. But when I lost weight during the time when I was heavily restricting my calories I didn’t lose any body fat. Nothing at all. I looked exactly the same and my measuring tape didn’t show that I lost any inches either. Now I’m scared that I’m going to lose weight healthy and not notice any difference and lose any body fat. How do I get rid of this mindset?.