You are doing fine. To "fix", put a sashing strip with 4 blocks (2 on each end) and white, as you will have the same problem as rows go together. Just take your time. It can be frustrating, but right now it looks great! The only other solution is to take a row off one side of each block. Since you are using three colors, your number of edge blocks needs to be divisible by three.
Last edited by laurafet; 10-13-2012 at 08:41 AM.