Johny was always a brawler and AN outsider. He couldn't relate to
anyone. The biggest problem witH HIM WAS his father. They 'argued'
all the time. One day he rAn away from home and HITCHHIKED to the town. When he dID that he was sixteen years old. (Mozna tez - i lepiej - He did that when he was 16 years old) When he gOT to the town he had soon reached the bottom.
It took two years before he snapPed out of this. (shit-to nie jest wyraz ktory uzywamy w takim pismie). He spenT his last money (mozna tez 'the last of his money') to get to his family town. He had been waiting for about twenty
minutes IN FRONT OF the doOR before he decided to call (moze dodaj 'ring the bell' zamiast 'call'). When he dId that his father opened the door. TheY both didn't say nothing - tutaj mamy double negative -lepiej They both didn't say ANYTHING'). Johny WALKED IN behind his father into the house and closed the door behind him.
I'm sure that he knEW that runNING away was his biggest mistake.