Mold making is REALLY difficult.

I literally spent 9 hours on this mold. And a few hours yesterday. It's truly a beast.
I'm attempting to make a mold of a light fixture/glass globe covered in prisms-esque thing.
It has about 4000 undercuts so the mold will be 15 parts.
I have two parts completed and one ready to be poured in the morning.
Why did I choose the hardest object ever?

I'm learning to think upside-down, inside-out, and backwards.
FUN!