On delays What are you to make of a delay or a failure in a system out of your control? What can you do to change these difficulties (if they may be called that) you face? Nothing, so maintain your proper disposition and keep a level-head. You haven't failed at this, but you should continue to remember this as you face more difficulties in the future.
On dismissing There are crazy, new, novel ideas all the time and it's your responsibility to be a patron of these ideas. Refusing to kill the messenger is not enough, you have to embrace the bringer of great ideas. Remember that at one point, you will be the bringer of these ideas. Those around you will reciprocate the very activity you gave to their idea. Create a culture, wherever you go, of accepting and trying new things. Allow ideas to flourish, and innovation will follow. It may not always work, but that's not the point. As you learned in Poke the Box, the goal is in starting new ideas and testing them, not succeeding every time. 100% success is not possible, so work accordingly and don't dismiss the crazy ideas.
On discomfort If you are not uncomfortable and a bit displeased with how little you said in a conversation, you failed. You are so used to dominating the conversation and owning the room that yielding causes you pain. That is an excellent way to measure whether or not you are effectively yielding. If you're doing it enough, it will hurt. If you're not yielding enough, you'll feel fine. This goes for a lot of things. If you're not a bit uncomfortable with criticism you receive, you need someone who will be tougher on you. If you're not uncomfortable with what you're writing, you should take more of a stance. There's uncertainty inherent in a life of innovation and change, so embrace it. From Andre Ward, you learned the importance of being comfortable being uncomfortable. It is the only way to win the fight against stagnation and, thus, failure.
On books When you finish reading a book (and while you're in the process), write down what you're learning. Write down the thoughts that the matter provokes in your head. Write down what the application of the book is to you. In this way, you'll force yourself to synthesize. Also, make these notes public. You'll have the added pressure of making them understandable and polished for others to get value from it. If you read a book and put it down immediately, you're not truly learning, but reading. Just like a teacher, a book is only a tool you use to teach yourself. Without your willingness to put in the extra work and thinking, you will achieve nothing.