AMEN........perseverance = self effort..........
per·se·ver·ance
/ˌpərsəˈvirəns/
noun
persistence in doing something despite difficulty or delay in achieving success.
"his
perseverance with the technique illustrates his single-mindedness"
synonyms
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ersistence, tenacity, determination, resolve, resolution, resoluteness, staying power, purposefulness, firmness of purpose; More