I would suggest adding a storyline and a larger cast of characters to your roleplays. Who is Rosalina? What kind of person is she? What are her motivations for being a wrestler. Why should I care? These are all questions that you have left unanswered.

If you start setting scenes, introducing other characters for her to interact with, and writing storylines that allow us to get to know the character and her motivations, it would go a long way towards developing your character and setting you down the path of winning matches. Right now all you have is a small set up and some generic trash talk.

I don't say that to be mean either, I'm legitimately trying to point you in the right direction.

As always, I advise you to read the works of some of the veterans around here. James Raven, Doc D'Ville, Thaddeus Duke, Chris Chaos, etc. All of them put up very high quality work that you could learn from.