Those that never fail, never try. If the idea is still with you and you want to do, and have the ability to follow it all the way, go for it. Did you learn from your mistakes the first time. Can you stick out the down feelings of time wasted. It takes about 5 years for a business to be really successful. Even the IRS accepts this. Do you have a support system in your personal life, both personally and finacially. One that can put up with the lack of progress and your preoccupation with your business and lack of occupation with a personal life, or that will join you in these things. This is one of the biggest cause of failures in a new bussiness.