More importantly, 193 countries in 60 years is less than four months per country. I'm not sure how much traveling you've done, but travel arrangements take planning; so does lodging, depending on where you're going (less-populated or less tourism-friendly countries can be an issue regarding where to stay if you haven't figured it out beforehand). Also, visa requirements can be very complex, and obtaining one can be both time-consuming and expensive, depending on how many fees or bribes (yes, in eastern Europe and some other places, this can be anywhere between helpful and necessary) are involved.

While you're right that relaxing would be the only way to handle this without going totally insane, that definitely won't make it a nice, leisurely trip. There is work involved, and a lot of it, much of it intellectually taxing.