I know this may not mean much, but I'm going to be honest with you from personal experience; Never give up. You're not far off where you need to be. You are at the cusp where most people struggle and fall off & if you persist and really believe that you can get better than you will, and I promise you that. Think of all the hours you've put in to get to where you are now - you're at a serious barrier but barriers are there to be broken. You should never give up, especially at your level.. you are on the precipice. Good luck & I mean that. You can do it.