Your personality is your best feature, physical beauty is so temporal and often over emphasized. Your loved ones know what you look like, but what they love is WHO you are inside.
You want to look your best, but you also want to be you, not an expressionless or stiff version of you. Everyone knows what a fake camera smile is, and honestly many people don't like it. I focus on finding ways to get the real you to come out in a comfortable environment, once you are comfortable and feeling like yourself, that is when you look your all time best. It takes time, but when we are finished, what we get is a photo of YOU, not just your face, but who you are on the inside.