People think I just walk up to a sheer cliff and climb it with no knowledge of anything, when in reality, there's tons and tons of information out there, and I'm already well tapped into it.
I generally don't climb something if it makes me feel fear. The beauty of soloing is that there's no pressure - no one's telling me to do it. So if something seems scary, I don't have any obligation to do it. I can prepare further or just walk away entirely.
For sure, Potrero Chico is a super nice winter vacation climbing area. It's really convenient to fly into Monterrey, one of the nicer cities in Mex, and get a taxi to Potero. Then you can just live in the camping area and walk everywhere. It's muy tranquilo, as they say there.
I've walked away from more climbs than I can count, just because I sensed that things were not quite right.