I'm Dark...Who Can Help Me?

I'm really dark and, unfortunately, it's not some tan that I got over the summer or something. I was born this way. I hate my skin color and people tease me about it all the time, from random people in the street to even my best friend. I rub lemon juice on my face because I've heard (and read) that it helps lighten skin. And well...I've been doing it for some time now and there's no difference. At all. I'm still an ugly black girl. I don't know if it was because I was born this way that it would be too late to change my skin tone or that it would take a lot longer to change. But if someone out there who cares about a dark (almost black) skinned girl (I have low self-esteem), please put some helpful comments down below because I feel like I've tried everything there is to do to lighten my skin and it ends up being a #Fail. Just someone tell me how to get rid of my dingy, dark, ugly skin please!