How can I cultivate a sense of appreciation and optimism in the face of adversity?

I heard its = an answer past by = from my coworker.
He said "the life is zero." = said, "Life is a balance of zero."
It means if I get one lucky = lucky once, then I must take a one difficulty.
Therefor = Therefore, the calculation of these = this is zero.
That's why I try to have the optimism = be optimistic about life.
When I face the diversity, it will be filled up by = with other good things.
So, I am = do not disappeared on = disappear in any bad situations.

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OR
I heard a response from my coworker. He said, "Life is a balance of zero." This means that for every piece of good luck I experience, I must also face some difficulty. Consequently, the overall calculation is zero. That's why I choose to be optimistic about life. When I encounter challenges, I believe that they can be balanced out by positive experiences. This perspective helps me avoid feeling overwhelmed by negative situations.