Successful failure
I remember when I graduated from the 5th grade; going on to the big "middle school". I was recommended for a particular math class called 6th grade advanced math. I was up for a challenge and I wanted to take a step ahead and start of a new clean sheet in middle school math. While in that class, I was struggling. I was getting D's, and F's on a lot of things and I was very upset. Perhaps I pushed myself too much? I needed to do something about it, so my mum hired a tutor who helped me out lots. I recognized that I can do the work, but not at the particular pace that they were going at. I used this as a learning experience to take a step down to the lower class the next year, and thoroughly think it out before we are already moving on.