When you said you had depresson before, did you actually see a psychiatrist?Like I said before, unless you are one of the unluckiest people alive, I see being depressed as one of the most selfish acts possible.
I have no doubt that sometimes people just like to whinge and whine for no reason, but true clinical depression is not something that you can choose to have.
It's like someone displaying personality changes after brain injury e.g. frontal lobe syndrome. Or an even better analogy would be Alzheimer's. It's not as if patents forget things because they don't care or they are too lazy to remember.