You may like it or hate it, but it's yours to keep for the entire period. You will learn lessons. You are enrolled in a full-time, informal school called life. There are no mistakes, only lessons.
Growth is a process of trial, error and experimentation.
Lessons are repeated until they are learned. A lesson will be presented to you in various forms until you have learned it. When you have learned it, you can go on to the next lesson. Learning lessons does not end. There is no part of life that doesn't contain it's lessons.