MO74

I am frustrated - trying to make 5 1/2 inch log cabin squares. The pattern calls for the strips to be cut
1 1/2 inches wide.

I have double checked my cutting measurement, and my seam allowances (1/4 inch).

I am sewing straight seams, dry pressing them open, and yet they are still not looking square. Some pieces look wider than others and the squares came out wat too small.

I am on my second attempt with just starting all over and ready to give up.

Any suggestions ?