[rapfaria]

At college I had a very poor algebra professor, and my first grade was 15/100. I didn't want to fail any classes, and since I only had them in the evening, I went on to take algebra with other two professors during the day. Those two were different, but I wouldn't say better than the first. But with determination, it finally clicked.

Second exam was 85/100, the highest between C.S. and Automation Engineer (both lectured by that first professor). While I do agree that a good teacher can pave the way for a good student, I think most of the work you have to do it yourself, as if your life depend on it (mine did).