Gallup advises against trying to turn your weaknesses into strengths. Instead, manage your weaknesses so they don't hinder you, and double down on your strengths.
You can’t get the real StrengthsFinder test free, but good alternatives exist. If you need Gallup’s validated results, budget for the official version. If you just want a fun, free strengths check-in, use HIGH5 instead. strengthsfinder test free
If you want the specific Gallup language and report, there is a cheaper way to access it than buying the book or the full leadership report. Gallup advises against trying to turn your weaknesses