Something that's really helped me work with my body weight and my own self-image is intuitive eating, an "anti-diet" approach I was introduced to by my registered dietician. Essentially, it's about recognizing when my body is hungry and being more accepting of who I am. My weight hasn't changed much, but there has been a much more marked improvement in my mental state. It feels much better than when I was tracking calories using a food scale and app (basically going into starvation via calorie deficit).
https://www.intuitiveeating.org/about-us/10-principles-of-in... https://www.health.harvard.edu/nutrition/feeding-body-and-so... https://www.healthline.com/nutrition/quick-guide-intuitive-e...