The theory really speaks to me, as someone without any strict passion that could be realized in some hypothetical job. But on the flip side, can you then be eve

The theory really speaks to me, as someone without any strict passion that could be realized in some hypothetical job. But on the flip side, can you then be ever really sure that if you dislike working in a certain field that it's because some specific job is bad or you are just too lazy to cultivate the competence/passion required to enjoy it? Can anyone do anything to reach the competence/enjoyment stage with enough grit?