Excellent post OP!!
I don't know very many people who were made better by meds and going to see a shrink. I do however know people who have dealt with acute depression, and even bi-polarism and more serious conditions by pure determination and willpower.
To everyone who is depressed:
Wallowing, moaning, crying and moping doesn't make you better. Life is what life is. It is not fair and it does not give a crap if you jump off a bridge tomorrow. It will not take pity on you, and it will not give you an easy ride. The only person, the only thing that can keep you together is yourself. Meds are just like a straitjacket. They won't cure you, they just hide what is going on. A shrink can talk for hours and hours, but you have to be the one that makes the difference.
I was depressed, once-upon-a-time. I was suicidal. I had fits. I couldn't sleep. I had horrific nightmares. I had hullucinations. I could barely bring myself to function. I would cry constantly. I self-harmed. If anyone said to me "get a grip", I would rile at them and tell them they didn't know what it was like, they didn't know what I was feeling. I had a terrible, bullying boyfriend, and a bad time at school. I didn't feel close enough to any of my friends to let them help me, and I pushed my parents away. When my boyfriend and I broke up, I went on a sexual binge, and did some very reckless things in my attempt to be "free". I started smoking (a big deal for me!) and got stupidly drunk on a number of occasions. I ended up in a relationship with a 44 year old man, with a ****-buddy on the side and also sleeping with my ex. I felt worthless. Then I decided that enough was enough. I felt sick with shame at what I had done, and what I had become. I did what I had been refusing to do for around four years, and I GOT A GRIP.
I still have the occasional lapse, and still self-harm if I get too hysterical, but episodes are few and far between. I feel confident, healthy, and strong.
It is horrificly difficult to break the cycle. It is so easy to say "I'm depressed. Really depressed. Look at my meds! How can I be expected to get a grip on this myself?" but trust me, in many, many cases, you are the only one who can make a difference.