Chemistry IA

So, I am in the final stages of my chemistry IA. I took my topic from a sample I found on the internet, but I have my own data and graphs.

However, when I look at the sample, I notice similarities in the language and now I am paranoid about being flagged for plagiarism. I uploaded my work to turnitin and I got a similarity index of 9%. But I am still worried that the IB would flag me for plagiarism. Should I be worried?