I'm honestly sorry you've had so much trouble. I've been out countless times and have yet to have any serious failures. For that matter, I have yet to witness any failures in person.
Maybe you got a lemon? Maybe the lift is to blame? Maybe you have a heavy right foot? Perhaps you are the worst H2 pilot ever
?
It just sounds like there are other forces at play here. I would have some very direct communication with my dealer about these issues if I were you. I hope you decide to hold on to your truck. What would you replace it with?