Focus is within your control, but what if the people around you see things through a different lenses? Will you lose your vision? People can only derail you by that much, but if the majority of your circle of influence is completely off with what you are trying to achieve, the chances of persisting with your vision become lower and lower. Focus not only on your goal, but make sure that the people you are sharing your views with don’t have leverage on you. Stay truthful to who you are.
That time you walked into a door, you said the wrong thing, you’ve been absent and worried instead of present and aware. All that is your responsibility. Things can happen, but the way they happen to you is different from how they happen to anyone else. And all this is how your process and perceive what is happening around you and how you choose to respond. Taking responsibility is the first step into the right direction.