I was diagnosed with depression four years ago, and have been working through it ever since. It's hard to describe the thought process and the lows you can go through when it's at its worst.
I implore anyone who feels like there isn't light at the end of the tunnel to have a crack at asking someone, anyone, for help. It doesn't have to be a shrink, it doesn't have to be a colleague, it can be as simple as explaining to your mate about why you feel down.
With the support of my employer and my mates, I'm feeling better than I have in my entire life, and flying. The only reason I got that support and thrown that lifeline was because I asked.
Together we're too strong to drown.