Optimism is a necessary skill in everyone’s toolbox, but no matter what, we should also be prepared to fail. We should not allow the thought of failing to stop us.
A lot of people beat drums and make a fuss that they never fail and they think it is cool.
The truth remains that unless you are prepared to fail, prepared to do things that just might not work, there is NO WAY you are going to come up with something original. Real strength comes from our ability to access all our past experiences; the good, the bad and the ugly and then continue to build up from there.