How does one reset Illustrator CS6 on Mac?

My Illustrator is acting a bit buggy; more precisely, no selection is actually visible. Selected text isn’t highlighted, looking for an anchor is like looking for a needle in a haystack, and finding a handle is a futile effort from the beginning. My thinking is that this could be resolved by resetting Illustrator’s preferences; where some blogs and fora suggest that it’s under Home Folder > Libraries > Application Support > Adobe > Adobe Illustrator CS6, I haven’t found the preferences folder in that directory. Is there any other way to reset it, or fix the problem?