What if Plan A don't work??
Well, that is what B, C, D, and so on is for.
The only thing I see many people don't do is take the lesson and build on it.
We all make mistakes and there is so much to learn until we get things right.
So find out what did not work and alter it or them until it does work.
But... don't overthink it either.
Do Not Give Up and just Keep Trying!!!!