I changed my resume for the interview, and now I'm a little afraid of them checking it. What should I do?
Even if they don't check your conscience? Learn to be a man first, really! You might as well find a suitable time to talk to your supervisor. You should be honest first. Of course there will be risks, but the advantages outweigh the disadvantages. If the company thinks you are honest and talented, you should know what the result will be!