Next time you catch yourself eyeing your dream job and then discounting the possibility, stop yourself and ask, "Why not me?" No doubt you will come up with a dozen convincing reasons why not. For each of those reasons, stop again and ask yourself, "Is that really true, or is it an assumption I'm making? Is that fact or is that a story I've created?"
You aren't in school any more where the teacher tells you everything and nothing happens without teacher approval.
Life doesn't happen to you. You make life happen. Nothing happens until you act.