Yes, I've suffered from depression before, and know how dark and isolating it can be... so I too am glad that you're well past that LuvAmy, well done
In my case, I have to constantly be vigilant and self-regulate my own mood, because I've discovered that I'm one of those people who's more likely than most to slip into depression... I just don't cope well with disappointment or difficult circumstances... but I address the problem by disciplining myself mentally, and always focusing on the important things in life... like gorgeous shemales lol
Basically, I'm trying to say that a person can determine their own state of mind, and thereby stop themselves from slipping into a depressive mental state.... to a greater or lesser extent. The power of positive thinking, and all that stuff.