One thing that has helped me is to put each block together in three sections, like a nine patch. When you think of it this way, you will be putting a corner to an edge to a corner (section 1). Then an edge, center, edge (section 2). Then corner, edge, corner (section 3)
What size will your finished block be? Do you want to post pictures of your fabrics so we can possibly give more detailed help? At one time I was making so many of these blocks that I developed a good rhythm.