Don't look at it as a whole quilt. Look at how it is drawn on the graph paper. Think of each square on the graph paper as 1 inch, 2 inches or whatever you need to to make the whole quilt the size you need it.
Then see how the odd angled stripes work with the pattern if they are easier to make when made from pieces of squares or rectangles.
Hope that helps. PM me if you want.
QuiltingGrannie