There are times in life when you have to stay focused on your goal, whilst having an already conceived plan for what you will do if it doesn't go to plan.
This way, you're never disappointed or upset, because you've planned for contingencies/
There are many who will advise you to stay focused on your outcome ONLY.. and never consider the alternate paths..
Those people never ran events or did any project management roles where plan B and C needs to be sitting in the wings...
I don't believe in positive thinking, i believe in useful thinking...