Based on the little info you have given, I'm going to say....move when you can. With what you have said, BNT, National Champ, TT, I'm going to guess you have an Arab in Walker country. Arabians are the most expensive horse I've ever shown. The trainers cost twice as much as other trainers and tend to get 'over horsed' by having too many horses to train in their barns.
If you aren't paying for training, you cannot expect to get the time of day from this trainer. He or she just plain doesn't have the time for you if you're not paying, it isn't fair to his or her other customers to give you a bunch of time when they are paying. Yes, you bought a horse from that barn and keep the horse there, but unless your questions are about the stalling and feeding, you have nothing coming from that trainer.
If you can't afford to train, I promise you you can't afford to show. I can show 3 horses at Pinto World Champs for what it costs to show 1 at Arabian US Nationals. So, if you want to show, you need to find a trainer you can afford or find a way to afford this trainer. Then you can save up the money to get to shows, once you have some training.