Oh, you're just new.
One of the biggest lessons you'll ever learn about horseback riding is that the horse is only as good as its rider. Horses aren't "*******s" (unless they have a genetic disposition to be), they simply are reacting to what they can get away with from a person. You'll get much further in the horse world if you stop calling your horse names and start asking yourself "what am I doing wrong now that I cannot communicate with my horse".
I get we all get frustrated with horses sometimes, but just this week I was getting nowhere being insistent that it was my yearling's fault that she didn't want to clip. Turns out I was being so egomaniacal that I didn't see how frequently she tilts away her poll and tightens her jaw, even in incremental amounts. Turns out by softening her head changes her entire attitude about what I'm doing. Does that make her a jerk? Absolutely not. She was trying to tell me something the whole time but I wouldn't listen because my pride got in the way.
Keep working with your trainer to help guide you through these ups and downs. Soon you will start seeing them and working them out for yourself and that's when the magic happens.