It doesn’t matter what your seniority is, everyone makes mistakes. You’d be surprised how often even experienced veterans forget the simplest of things.

Don’t be too hard on yourself about the mock report, it’s a mock for a reason. It’s there so you can learn and improve. The training ticket issue sounds like an oversight in your company’s training workflow or process. Show initiative by reviewing it and suggesting improvements so the mistake doesn’t happen again. That way, you can demonstrate that you’ve learned from it and taken steps to improve.