What a hard-bitten cynical bunch y'all are!
Best way never to achieve a dream is never to try... you may well be a bit old for certain aviation career paths, but others are still open.
Have a look up in the wannabes forum... not necessary to start a new thread, just either do a specific search, or set your browser back about a year, crack open a cold one, and dedicate 4 hours of your life to reading as much of it as you can. This question has arisen many times.... don't expect a definitive answer, but you will get a bit of clarity.
Never ask a group of pilots a question, by the way.. you will get 18 different answers, each one right!
I believe if you really want something, you have to try... you only get one shot at this life.