Fear is the path to the dark side.
I have no problem with being prepared to deal with eventualities that I fear might happen. I was a boy scout forever, being prepared is in my blood. However, spending too much time on plan ‘b’ tends to make it a self-fulfilling prophecy. It’s the difference between being prepared for the worst and expecting it. Between optimism and pessimism. Success will never come to those who do not reach for it, so optimism must prevail. That is all.