It’s no different that drinking yourself into poor health, smoking yourself to cancer, eating yourself to morbid obesity, not exercising your self into diabetes, etc., etc., etc. In order to be depressed you have to really, really want it.
You need to know your audience a little better. I know this isn't the edgiest site, but edge is still a factor in whether or not you're meme will succeed. This site is at about (2, -1) on the meme graph. Meme accordingly.
I might have upvoted yours, but I know I upped the one about the sword because I thought it was clever. The issue deserves awareness, but don't blame others for their successes.
I'm not, it was just a funny thing I saw and decided to comment on it. Yeah I totally agree that him stabbing his foot with a sword was hilarious. I just saying. More for a comedic affect.
SO I MAKE A MEME ABOUT HELPING THOSE WITH DEPRESSION AND GET NOTHING. BUT A GUY MAKES A MEME ABOUT HIM STABBING HIMSELF IN THE FOOT WITH A SWORD AND IT GETS FRONT PAGE.