No, I don't have two brains, unfortunately. That would be great, like a 2nd hard drive for storage.
No, the other problem is being navigationally challenged. I get lost very easily, and this is compounded by partial night blindness. Things look alien and unfamiliar at night, so I take wrong roads or just get disoriented. The other night, firemen and rescue people decided to block off an intersection suddenly, that I'd driven through just a few hours earlier.
There had been a tragic accident there a day before, and now they were apparently doing more investigation. Why they were doing this at night is beyond me. There didn't appear to be any road repair going on.
So they wanted everyone to detour around the spot instead of through it, but the detour had almost no markings (and no extra lights), and went through a broken-down parking lot and out to a tiny road. I lost track of it, and of where I was. Ended up in a circle and had to go back to the firemen again. They had to tell me what road I was on. I don't like getting lost.
I had a girlfriend in the 80s from Iowa. She came to NY had no problem figuring out which way we needed to go after only driving around for a short time. And this is before google Earth and GPS. Of course she had driven bus in Iowa and was current a dispatcher for paratransit so maybe that help to wire her brain for this sort of thing.