If you haven't tried a bargello yet, it might help to watch a few of these videos just to get an idea of how they go together. Maybe that will help you decipher your pattern.
I have done a regular bargello, but I've never done a twisted version. Still, I'm still pretty sure that you should Not cut lots of little squares!
Here is the link to some bargello tutorials:
https://www.youtube.com/results?sear...quilt+tutorial
If you aren't in a hurry, it would be worth it to wait for more advice here too.
Good luck, and have fun with it.
***edit: just found this tutorial ...it may help too:
https://www.dailykos.com/stories/201...bargello-quilt