The one with the passing

Woke up today and checked FB as usual and saw a friend's post regarding his dad's passing.
I am really sorry to find out about it and it has gotten me thinking a little bit about stuff.
We are all so fragile on this world. You never know when your time has finally run out.
Why aren't we letting ourselves be happy and without pointless conflict and burden?
Work problems.
Love problems.
Money problems.
A lot of them are self inflicted, aren't they?
I want to be free of these problems as much as possible.
But how to do it....