There are a few things that we should remind ourselves everyday, just as if it were reading our very own Holy Book. Something obvious, oft heard or read, yet golden:
 

Two Days We Should Not Worry

There are two days in every week about which we should not worry,

two days which should be kept free from fear and apprehension.

One of these days is Yesterday with all its mistakes and cares,

its faults and blunders, its aches and pains.

Yesterday has passed forever beyond our control.

All the money in the world cannot bring back Yesterday.

We cannot undo a single act we performed;we cannot erase a single word we said.

Yesterday is gone forever.

The other day we should not worry about is Tomorrow

with all its possible adversities,

its burdens,its large promise and its poor performance;

Tomorrow is also beyond our immediate control.

Tomorrow's sun will rise,

either in splendor or behind a mask of clouds, but it will rise.

Until it does, we have no stake in Tomorrow,

for it is yet to be born.

This leaves only one day, Today.

Any person can fight the battle of just one day.

It is when you and I add the burdens of those two awful eternities

Yesterday and Tomorrow, that we break down.

It is not the experience of Today that drives a person mad,

it is the remorse or bitterness of something

which happened Yesterday and the dread of what

Tomorrow may bring.

Let us, therefore, Live but one day at a time.