Trust me, I know how it feels. I know what it's like to constantly think about food. I know what it's like to be driven insane trying to follow a ridiculous diet. And I also know what it's like to feel beyond guilty that 80 percent of the time I do eat that piece of cake I promised myself I wouldn't. I know how it feels to stand in front of the full-length mirror in your bathroom and choke back tears because your thighs look way too big in the new shorts that you were so excited to wear. I've felt insecure, I've felt hopeless, and I sometimes have a hard time holding my body confidently when I walk into a room of strangers.

We've all felt it.

But there are times when some of us feel it so strongly we just want to burst. Times when we simply can't handle the thought of being inadequate, unattractive or not enough. These feelings can lead us to desperate measures, and we do things we never thought in our right minds we would do. Insecurity holds great and ugly power, and oftentimes it can twist the truth. Sometimes, it can even twist us.

The first day my best friend called me and told me she had made herself throw up, I cried on the phone. I knew this girl inside and out, had grown up alongside her for the past 14 years. This wasn't her, this just wasn't something she would do. Yes, of course I knew this girl.

But at the same time, I had no idea what she was dealing with.

I didn't understand what it was like to have people telling me each successive day that I wasn't enough. That I would never make it unless I lost 10 pounds. That I didn't have the right "look" to be an Olympic-level athlete.

Day in and day out, my friend was degraded with these words and notions conceived from nothing but the expectations of society and the culture of a brutal sport.

The first words I said to her and the only words I can really, truly offer to any girl struggling with this are, "It's not worth it." Because it just isn't. Compromising your physical, mental and emotional health is not worth being the best at your sport. It's not worth becoming a prima ballerina, fitting into size two jeans, getting boys to like you, becoming part of a sorority, being a model or looking great in a bikini.

What is worth it is you.

I know that sometimes as a girl it is so hard to realize that you are more than just a body. But you are. You are more than just skin and bones. You are a million stories of where you've been, a million visions of where you want to go. You are the kind words you've said to strangers passing by, you are your favorite books, and the quotes hung up above your bed frame. You are the songs you play over and over again till the lyrics are second nature. You are the tattoo you've always wanted to get on your forearm. You are your mother's daughter.

Don't simplify yourself to just a body. You are so much more than that.