Thats okay. Am happy to help. Also just to mention when you go for the interview, try not to appear over confident when answering questions, and at the same time don't get to nervous and appear not to know what you are talking about. It's okay to be nervous though, how you overcome the nervousness is more important. It shows you want it and not one of those who knows everything rather you are willing to learn and improve on your imperfections. Hope this makes sense.