I'm good at writing essays on other topics... But i can't figure out how to start this essay strongly, with an interesting intro!
It is not surprising that you have trouble with this topic, because you are going to have to write all about why you deserve something... which is an unusual and self-centered thing to have to do!
However, you must do it, so find a way. What would impress you if you were the reader? Interestingly, you mentioned that you are good at writing essays about things like "what changes will take place regarding the role of women," and you could actually make this a subject for your essay:
If I am awarded this scholarship, I will be empowered to carry out my plan to create opportunities for professional women.
Nothing in the world is comparable to enrolling into a prestigious institution of higher education.--- this is a reason you want the scholarship, not a reason you deserve it.
Since childhood, I have always been a pupil of great potential and academic ability. Learning something new each day would always fascinate me, and I would constantly
enjoy the times of reading a book under a tree, in my backyard, to my younger brother Steve.---- yes, nevermind all this. It is not impressive yet.
I think you should devise a life plan and describe it. Tell them that the scholarship will help to actualize your plan.
:-)