Help. Self esteem issues.

I have severe anxiety. Im trying to learn to over come. I need tips and advise on how to be more confident and sexy. Some days at home i think i look prefect then step outside and feel like shit about myself when i see someone with a body i want. Like a bigger ass and small waist. But at the same time i love my body and who i am. How do you women stay confident about yourselves?! 💖💖💖