If you do a lot of very important things in your life, you will become dead serious.
Do unimportant things. Keep it simple and light.
Beware of the lure of important success and achievement.
The ego lures you with importance and seriousness into a trap of misery. You take your life very seriously, you will end up dead.
You try to do your very best serious effort, you will not be happy.
Doing important things is really a reflection of your self importance, because your ego thinks it is very important and needs to do important things.
It's time to lighten up a bit and spend some time not doing anything important at all. ;-)
Have fun, play, laugh, relax.