In pursue of what you want there will always be things thrown at you to hinder your attention.
What your job is to do is stay focused. There will always be something that will distract you from your path, but your will and discipline is what will always win. The road to success is never smooth neither is it always pretty. Ups and downs happen, learn to control the emotion that you feel when you are down and the emotions that make you happy when things are great. Always be happy but always be focused. The journey never stops so make it as sweet as possible.