Don't fix everything, fix everything that matters. May the source be with you. A system of a thousand programs fails in a single line. Planning for failure is better than failing to plan. Delivering Year 2000 late is equivalent to never starting.
Denial is never a long term survival strategy.
Projects are never late by intention. The more ingenious the fix, the higher the potential rate of errors. Being pushed to the wall gives you the momentum to get over it. Fixing lines of code is simple, fixing integrated systems is not. Fear of consequences is a great motivator.