Don't worry, your worries won't bring you happiness or anything good.
You'll be alright.
I believe.
Trust God.
If not god, then trust yourself.
No one is perfect, not everyone is brave. Not everyone have a beautiful face. Yeah we know it's the truth and we can't keep lying to ourselves.
I don't know why you are sad. But if you thing that the reason is really depressing, lemme tell you one more thing.
Life is just a survival game for some and a true fun-game for others.
And those in the survival field are super brave, if not, they have to be.
Just don't stay depressed. Don't hurt yourself. Don't waste the little time you have on this planet. You're life is worth it. You are important to me. I've been through that stage and leant to come out of it. And now I laugh that way.
Laughing is the best thing. You can't be happy unless to want or try to be. Just try. Love yourself because there's no one who would care for you more than you, and if you have that one person who does care ( other than your parents), trust me you are one of the most lucky person on earth.
Love you. ( I mean it.)