How did you overcome insecurities and become a confident person?

I have been struggling with an eating disorder, depression, and low self esteem my whole life. I have been seeking therepy and have a nutritionist who has helped me overcome my eating issues and I am on medication for my depression. I still have low self eteem and feel badly about myself. I know it is possible to gain the self esteem I want to have and not hate myself but I would love to hear from others how they overcame this difficult time in their life for some inspiration. I have realized that I can change and I don't need to feel the way I do and am working on it now. How did you overcome you self confidence problems? Thanks!