Perhaps you didn't start earlier enough looking for a strategy of change or perhaps you let a venture capitalist or ad agency encourage you to spend too much, too fast, not pausing to learn enough lessons along the way. They all took a bath, too. If you do fail, remember , most people have failed, not once, but many times. You learn more from failure than success. The good news is that venture capitalists had rather invest in someone who's launched a dot com once, even if it failed, than someone who's never launched one at all.
Failure is only temporary.
Since every success is the result of previous failures, if you fail, it means you've given up too soon. Get busy and hang in there for the next wave.