Greetings @chbartist!
The experiences that are not pleasant can be remembered and affect our mood in a negative way.
If we can understand how these bad experiences affect us, we can manipulate them to our advantage, combining them in positive experiences that allow us to advance in new difficult situations. The study of new disciplines helps turn our past into reference material to be successful in the future, so it is advisable to carry out any education activity. A short or medium-time training or course will be enough to help transform those experiences. The studies help to motivate the change of environment, which may be keeping in a present way the bad experience.