The world is not fair, that's just the way it is.
Some people are born in better situations than others,
for example some are discriminated against for their background,
some are discriminated against for other features,
some are born with genetic diseases and suffer all their life,
some kids lose both their parents as children and the world continues like nothing happened.
In tough situations sometimes you just have to accept that it is what it is and keep going.
The numbering system most used today is the "Decimal System" also known as "Hindu Numerals".
It introduced the concept of 0 (zero not the alphabet O) and decimals.
As a person who's been trying to work on businesses for years and not finding success, I'm gonna keep going.
I'm not religious but one the most interesting things I've read on this topic is titled "Invest in Many Ventures" in the book of Ecclesiastes. The 6th and final verse says:
"Sow your seed in the morning,
and at evening let your hands not be idle,
for you do not know which will succeed,
whether this or that,
or whether both will do equally well."
So if one thing doesn't work, try something else. Also be open to investing in different projects at the same time because you don't know what will succeed.