My old trainer was probably the best horsewomen I will ever know. I started out riding the perfect horse, then I was switched to a green little welsh pony who I felt I just couldn't control. He refused jumps, he wouldn't allow anyone to catch him, he ran off with me, he was a brat..... But my experience with that pony is wy I am who I am today, and why I ride like I do today. It thought my to ride, not just to look pretty in the saddle. Although it was frustrating at times, I look back and I don't regret any of it. I think that you should keep your horse, and get a trainer. It will be a good learning experience for both you and your horse.