What is the movie called ?

I’ve been strugling to find one movie..so I’ll try to describe the most important moments in the movie :”THe movie begins how little boy is sad and dark and after some time he meets a bully and his 2,3 friends in the forest and tells the bully the exact date he will die (ofcouse he was making it up just to scare the bully).THen he goes back to his house and sees an item(i think it was a sandwatch or maybe some Biology stuff like a book or stuffed animal )that belonged to his father…his father in the end of the movie is shown how he commits suicide. So in the middle of the movie..he is a troubled teen and goes outside with new friends and gets drunk and has fun.Before the end of the movie, the teen argues with his mother and step father and tell them that they are ignorant and similar stuff…but he was angry and drunk at this moment. And shortly after that in the there is like a skip in the movie and shows some kind of foggy for a period and then crystal clear view of him watching from the forest his dad standing on the edge of a bridge and then jumping(this is what his memory was I assume) ..After that the teen was standing at the same place where his dad was standing before he commit suicide and he doesn’t jump, instead cries and feels relieved and returns back to his home somehow lighter and happier and the movie ends like that .
This is pretty much what happens in the movie but sadly i don’t remember the names of the cast .
I would be extremely thankful if someone can find the name of this movie !!!