I hate myself, when I look in the mirror I feel sick and when I take pictures with friends I feel embarrassed. Any advice ?

I understand this must be very tough for you and I know me telling you you are beautiful and amazing and shouldn't be embarrassed won't solve the problem, but still that is how i want to start. Trying to love your self and accept your own flaws and find that you are beautiful is very difficult. You have to take small steps at a time, slowly finding the things you don't hate about yourself. Look in the mirror or think for yourself; what are the things you don't hate or that are kinda okay? Is there anything you are good at? Have you gotten a compliment on something? You can also ask someone else what they like about you. Later you also might find details that you like about yourself. Your feet, hair, freckles, the colour of your eyes, your artistic side, your loyalty, or something else! Try to compliment yourself and get better at recieving compliments from others. Things will take time but they will happen.