Hi, Cecilia. If you are wondering whether or not your paper is persuasive enough, then think about your use of rhetoric. Effective persuasive writing involves appealing to your reader's trust in your authority on the subject (Ethos), appealing to their emotions (Pathos), and appealing to their sense of logic (Logos). For example, support your claims with evidence that is properly cited from trustworthy sources. It also helps to have a well-written thesis statement with body paragraphs that serve as pillars of support to the thesis.
It's always a good idea to get peer review to help evaluate your paper, but it's not necessary to "track eye movement." Just ask them for their honest feedback and delete unnecessary parts. Writing is a reflective process that requires constant editing and revising to get it "just right" before your are ready to submit. Hope that helps. Best of luck!