Card trick quilt block, definitely tricky the first time. A finished block at last

Definitely not for the faint of heart. This was about to get the best of me but I stuck to it 

It felt like I was going to let this pattern defeat me but it didn't.  

When I was going to the police academy the 6 ft wood wall with no hand holds did and I thought this was going the same way but I won this time. YEAH!