We set this baseline of “normal” in our mind, and we keep comparing it with how it is right now;
And develop strong feelings towards what is not normal.

Normal
is to feel full, relaxed, and happy.
If it is so, right now, then that's normal.
Won't feel a thing.

If not, we feel hungry.
Something unplanned comes up, we feel stressed.
Someone does something we didn't imagine,
a hardship comes up,
we feel sad, and angry.

What if we set our expectations and baseline like:
Life is a set of disappointments, and a collection of miseries.
Every second not so, a chance to be happy and grateful.
The rest?
It's just life…
Normal life, as it is supposed to be.
No hard feelings.