You will learn lessons. You are enrolled in a full-time informal school called life. Each day in this school you will have the opportunity to learn the lessons. You may like the lessons or think them irrelevant and stupid. There are no mistakes, only lessons.
Growth is a process of trial and error, and experimentation.
The failed experiments are as much a part of the process as the experiment that ultimately works. A lesson is repeated until learned. A lesson will be presented to you in various forms until you have learned it. When you have learned it, you can then go on to the next lesson. Learning lessons does not end.