Definitely sounds like you're frying the clutch for some reason.
It's possible its a defect in the bike that is causing the clutch wear problem, but typically its something the rider is doing that is putting undue stress on the clutch: burnouts, wheelies, holding the bike on a hill with the clutch, etc. I'm not accusing, but you sound like somewhat of a novice. Do you think there is any possibility you're abusing the clutch, perhaps without knowing it? During your ERC, did the instructor talk to you at all about your clutch technique?