For so many who enter a field of study to have results, the hours needed to succeed in their field, is ten thousand hours. They say, The ten-thousand-hour principle.
Mozart, Beatles, Steve Jobs.
Their success was not due to prodigious talent or good fortune but due to their tireless hard work and suffering.
Perhaps that applies to work, relationships, and love.
To finish with achievement instead of waiting for good fortune or talent, one should put in endless efforts and must go through hardships.