Hello! What I can see from the pic is that it appears that you don't have the same number of stitches for every row. The most important thing you can do, is make sure to count the stitches at the end of each row to make sure you are consistent. Also, it's important to use the same method of starting a new row such as, if you use the beginning chain to be your first DC in each row then you do not want to then make your first actual DC into the base of that stitch - you must put it into the next stitch. You then need to make sure that you have gotten the very last stitch in the row created too. Sometimes it can be difficult to see where the top of the last DC from the previous row is because it can get pulled tight which makes it hard to see. If you get to the end of the row and are one stitch short you can be fairly certain that you still have one stitch to go and if you look closely you will see it there at the end. You will likely need to work the hook into it if it is tight. I hope that helps you out!!