That is an incredible number of,failures. You might have the worlds record.
I can see this with board bows. But once,you move into backed bows the success rate should improve.
First try to find out where the,"tic" came from.
Do you have a pulley operated tillering tree?
Hard to,see,how your tillering went from the pictures.
Hickory usually needs to be,wider than IPE. iPE is a dense wood that can work,well very narrow.
R/d bows are a little more difficult to tiller than straight or reflexed bows.
After that many tries there is something fundamentally wrong with your process.
Maybe a build along using your picture taking skills on each step.
I read into your post that finances are a problem. If you had to buy the board,for the failed bows it adds up fast.
I wish you lived closer, would love to get together for some building.