How to be more confident?

Hi, I am a 17f and I have for years struggled with self image, and self esteem. For years I didn’t leave my house and would have panic attacks each time someone mentioned the idea of being seen in public. I also was too scared to be seen by my family and on photos because of how ugly I thought I was. Now I post on social media and I have friends who also tell me I am pretty but I am still finding it very hard to be even slightly comfortable with my looks. I only mentioned the examples I did before to show the severity of my insecurity. I am now also medicated so my anxiety is a bit better and I am able to leave the house sometimes by myself. I mention all this as well because I don’t want any bs advice like “just name 3 things you see, 2 things you hear” or “just know nobody cares about you” because Ive been told that millions of times. If anyone has any proper advice on how to grow more confident or any recommendations on what to do and how to overcome this please let me know. I will be grateful for anything. I am not even able to put my hair up because I am scared of people looking at my face. That is something I want to be able to do at least by the time school starts again. Please help I am sick of this.