You might try the webbing method to sew your blocks together. Lay out your quilt then, chain piecing, sew blocks 1 and 2 together for each row. Do not cut them apart! Stack the blocks in column 3 with first row (row A) block on top. Do the same for each column. Sew block A3 to A2, block B3 to B2, etc down the column. Don't cut anything apart. Do the same for each column. When you're done, the whole quilt will be webbed together. Then sew row A to row B, etc., nesting seams, still without cutting any connections. Hope this makes sense!