I tried the card trick block before rotary cutters and rulers. what a hot mess that was. Now I have tools and starch and know what half square triangles, split quarter square triangles and a center quarter square triangle and it's easy as pie.
I thinnk the block I spent the most time doing (8 hours according to my DJ journal) was the center block in the dear jane quilt Pappa's Star. I made three before I called it good enough. 4.5" finished, the center star was about an inch I think. But it made a better quilter out of me
If we don't try, we can't succeed. (not my block, just grabbed it from google)