I'm really sorry things didn't work out for you and this guy. I may get seriously flamed for this, but after reading all the trouble you're having it's quite obvious this is more horse than you can handle. This young guy needs someone more experienced to lay down the bricks in his foundation.
Please don't take this as a slight towards you, it's not, sometimes the match just isn't meant to be. I'm sure you will find yourself a nice quiet older horse who will be more suited to you and your personality.