This isn't like woodcarving, which is fairly intuitive and requires only a lot of practice.

FPGA design, and graphics programming generally, requires higher-order math. I have always struggled mightily with trigonometry; something about it just doesn't click in my brain. Calculus I can handle, but spatial math breaks down in my head.

I could probably figure it out given enough time, but it would take much more time than it would take someone whose brain is aligned for it.

This is the "growth mindset" interpretation, and it's really a super power if you believe it.