One quote that has had immense power in my life is, "Whether you say you can or you can't, you are right." I have learned & am continuing to learn every day that (humble) confidence is key. I don't have time for doubt or to be afraid. This confidence has come from faith in my Savior Jesus Christ. I will never be enough, I will never be perfect, but through him, I can do all things.
It pains me when I see women of all ages mentioning that they have no beauty, aren't skinny enough, don't have enough muscle, are ugly, are not divine. NEWS FLASH! You don't determine your worth or your divinity. You are priceless & will always be priceless. We are all children of God who has made us in his unique & beautiful image. That fact right there proves your worth, your beauty, and how loved you are!
If confidence in your unique beauty is something you struggle with, change. Change can be hard & sometimes painful but it is beautiful. Spend time in the scriptures, surround yourself with beautiful people & people who have beautiful souls, reach out to family, start to understand your flaws & turn them into strengths, take care of the body & the machine that God has blessed you with, deepen your relationship with Christ & ask him for help to understand who you truly are.