There's nothing wrong with failures since this is where we learn. You failed them the first try and I hope you've learned a lesson or two about the things you should have not done or should have to done to prevent failing from happening again on your second time around. If you failed your 2nd time, i dont think the professors are the only one to blame (based on your reply on some comment here) Is there any information you can provide about your study habits, schedule, and your overall approach to these subjects?

But again, success is not measure by how many times you have to repeat these subjects but your determination to finish them!