I'm onlu just learning not to worry about everything: about what happened in the past, what is happening today and what might happen after ever (sometimes trivial) decision I make. It is tiring to worry about everything. And useless, because you simply can not control every factor.

I like the following Shantidiva Buddah quote a lot, because it is so true:

If you can solve your problem, what is the need of worrying? If you can not solve it, then what is the use of worrying?

Spot on, I think...