Short Answer 
The process involves identifying key terms related to possession and plurality, making grammatical changes such as adding apostrophes and converting terms like ‘medal’ to ‘medals’, and ensuring consistency in plurality by altering ‘competition’ to ‘competitions’ based on contextual clues.
Identify the Key Terms
Begin by pinpointing the important terms in the sentence that need to be transformed. In this case, look for the words that indicate possession and plurality. The crucial terms are athlete, medal, and competition.
Apply Grammatical Changes
Next, make the necessary grammatical adjustments to these terms. For example, add an apostrophe and an ‘s’ to athlete to illustrate possession, changing it to ‘athlete’s’. Change medal to its plural form ‘medals’ to signify that the athlete aims to win more than one medal.
Ensure Consistency in Plurality
Finally, check for any contextual clues that indicate the need for pluralization. The phrase ‘all of her’ suggests that there will be multiple instances, so change competition to ‘competitions’. This ensures that the sentence reflects that she aims for victory in multiple competitions.