For the longest time I have always started my pictures from the very top or corner and worked my way down. Last year I began to copy the pattern and then, like you, use a highlighter to keep track of where I am at, so not to lose my place. I know it goes against directions as to begin in the center, I just make sure I double, sometimes triple count to make sure I'm lined up correctly. Will be anxious to see the finished picture. Have fun!!!