Life crisis itself is a change in certain aspects from one phase of life to another phase that requires adjustment. But not everyone is successful in making these adjustments. this results in a decreased mental state and confusion about how to deal with the upcoming situation
In conclusion, people who cannot face drastic changes in a phase of their life will experience a life crisis. Likewise with teenagers. Teenagers turning 18 have to make a lot of decisions in a short amount of time and for the first time set foot in the world of 'adults' where we have to solve our own problems without the help of our parents.
So, here we are, sending message to other people how to solve life crisis and some experience that already passed the phase of life crisis at 18.