Here I am quoting myself-

You can be down in the dumps if you want to be.
I don't think that does any good, but its your prerogative.
I see progress instead.

I remembered hearing something like that a long time ago
and it was said better than me so I thought I would share -

“We either make ourselves miserable, or we make ourselves strong.
The amount of work is the same.”

― Carlos Castaneda