Block Tote...issues! =(

My fellow Mad Mod Member, Trina, asked for pattern testers for her new tote bag pattern.  The timing was right and I volunteered.  The concept is to use an orphan block as the decoration, but I don't really have any! Instead, I spent half of my Saturday morning looking through books and pinterest to get block inspiration.  There were a few things that looked appealing, but I ended up deciding on making a block from some leftover bonus half square triangles.  These are from 'Quietude'- a baby quilt a co-worker commissioned.

I did the math and thought the block would be 10.5" The pattern calls for a 12" block, so I would add some coping strips and call it good.  I did the math wrong!!  I think this error was a sign and I should have found other things to do.  Like clean my house!!  The block was well over 12"!!  Ay carumba!!!  

Back to the drawing board...  One thing that I found while looking for an interesting block was the nested churn dash.  It's super cool!!  So, I paid the $2 to buy the block pattern from Quilt Jane (why not let her do all the math?  Clearly I"m not having a day for that)

All afternoon, I felt worse and worse, but kept plugging away... Note to self- If you aren't feeling well and aren't thinking clearly--STOP.  Look at the yellow!!!  I didn't see the MASSIVE errors until this morning!!  I can't live with that, so I will make corrections (or start over?).  What did I do?  I think I was referencing the wrong measurements for the half square triangle?  or didn't trim it up?  What a mess.   This poor little block tote-- I haven't even started the tote part!! =(