Why am I doing this?

"You're already fit, you're already a trainer, so why in the world are you taking on a new fitness challenge?" 

I'm going to be totally honest with you, while my exterior may look fit, my health is not where I want it to be right now. As some of you already know, I've been dealing with hair loss, my acne started to come back, and while I'm always consistent with leading an active lifestyle, it's been a long time since I have truly challenged myself in the gym the way I could and should. 

So...