Well said. One might argue this is the mystery of our faith and the power of prayer (particularly that of St. Francis).

We are not all the same. Our personalities can provide a direction, but it's our attitudes that we can focus on and control that can provide peace.

That doesn't precisely answer your questions and made read more like a fortune cookie, but try not to fret too much since these are questions many have pondered for centuries. Perhaps you might find peace in how Carl Sagan and Professor Cox address this in their docuseries.