>inb4 cameras distort your face
Cope. It's what others see. Take a video of yourself, but place the camera further away so that any "distortion" is minimal or nonexistant. That's what you look like to other people. Modern smartphone cameras are more than good enough, especially from further away. Basically, you're seeing what other people see when they look at you and your brain simply isn't used to it, but it's a much more accurate representation of what you look like to other people.
Cope. The most accurate is candid video footage. Basically, someone else recording you without your knowledge, preferably surrounded by other people. Candid photos are a close second followed by regular photos.
Your brain has a way to cope with being sexually unattractive so it changes the perception of yourself in the mirror. You also tend to adjust your face and angles when looking at the mirror which is frauding.
Chad looks attractive in all photos, cameras, angles and lighting.