Hi. You did not enter the text to which this question refers, which makes it impossible for it to be answered. However, I will try to help you as best I can.
To answer this question, you will need to read all the text it refers to. During this reading, you will need to identify the elements, actions and factors that Mitildes used to be able to overcome the difficulties and disadvantages she presented. These elements need to be able to exterminate the disadvantages or mitigate them to the point of making Mitildes overcome her difficulties efficiently.