Self worth

I am struggling with the teaching on being 100% worthy as I am. My self worth comes from my thoughts about my achievements more than who I am as a person. I.e I am a doctor and thoughts about how I achieved that create self worth for me. This mainly shows up for me with looks – if I look a certain way I get thoughts that create confidence for me. As Brooke (as far I understand) advocates for dressing the part i.e wearing make up etc how does this tie in with the model? If it’s just thoughts not the action that create the feelings of confidence why wear make up? I am very stuck on this and would hugely appreciate help on understanding how Brooke sees this.