There is that 

which we could call 

the prison of the past.

   We make a mistake, and fail to correct it, and pretty soon we are captured by what we have done, and where we have been, and how we have fallen short. Our past becomes our present, and we let our failures define our future.
   We become prisoners of our past.
   We should learn: Making a mistake is not the bigger fault, failing to correct the mistake is.