Why teenage is so stubborn?

It is a Teenage story of a boy Harley . How he overcome from his Teenage mind with love financial problems anxiety stress depression  addiction etc. These are all started with love It’s  a unsolved mysterious deaths by his  girl friend and his high school friend it’s  a unknown number makes him  so crazy to combined with a dream of a beautiful mysterious face girl. After so many ups and downs he got a New life which he want. He got all the answers from his unexpected friends .