You are smart to have taken it early! Texas only recently decoupled the exam from the experience requirement, but I could have taken the PE probably in 2010 or 2011. But nope, waited until 2017 so that things I had learned from college had already vacated my brain.I don't think they do anything with license numbers because I believe that process is separate. The test and license are decoupled so you can take it before your experience requirements are met. I took it with only a year and a half of experience.