Most of my heaviest anxiety and depression was between 10-14 years old. All i can say about that is kids can be really, really shitty.
Other than that, i've had my own moments, but nothing like what some of you have gone through. However, the most important thing you guys need to know is that you're not alone, and there are indeed people who care. I've lost family members to depression, and one of my very best friends battles Bi-Polar disorder daily. Actually, come to think of it, two of my best friends. :/ Hang in there.