Over the years I have come across people who say that they can't do something because they tried it...oh say...10 - 20 years ago and it just didn't work.
My question to them is "have you tried it again?" It is amazing how many people believe that because something didn't work at one time - that it will surely not work today!
My advice - take a step back, evaluate what can be done differently in order to succeed! I decided many years ago to not allow my past to hold me back from achieving my goals.
Do not let one little issue from your past keep you from redefining your future!