I heard that letters of recommendation might be a key indicator if someone's getting nothing but rejections year after year. Judging by your screen name, I'm going to take a wild guess that you're international. Perhaps your professors aren't very well known, or something like that. In addition, it may also indicate that grad school isn't necessarily the right choice. I've been thinking about lab technician positions. If you're a science/engineering major, this might be worth a consideration. As far as I know, they work 12 month contracts, and you get to work closely with the professor and get some serious in person exposure. If all goes well, I think this could be a great chance to get into a school, because they're not going to take someone they've seen only on paper over someone that they know will be a good addition to the research group.
My old roommate applied several times to ISU's stats program, which is in the top 5. This was while he was doing a PhD in physics. God knows why... But I read his SOP, and it wasn't stellar by any means. But I know that he has worked with professors in the department, and got in and enrolled after completing his physics PhD, despite two rejections in previous years. I mean of course he got rejected. How does one justify doing a physics and stats PhD at the same time??? that's dumb.