I learned the importance of making sure that what ever you use to make sure that your angle's are square, that it should also be square.
I learned that planning can be very useful when you are trying to use as little plywood as possible.
I learned that you should never compromise your plan for anything, it makes it a whole lot harder. My mentor kept telling me I should do, intead of folowing my plan, then he contraridicted himself and said to go with my original plan, but then said I was doing it wrong, and it was just annoying.
So yeah. I don't know what I'm suppose to do now.