A very bad dream

Last week,I had very bad dream.
The dream goes like this.
My father wanted to bring my family to the park.
On the way,I found out that I was on top of a tall building without an elevator or stairs.
On one side of the building, there was a ladder that leads to a park below.
I climbed down the ladder with my brother.
I went down the ladder first.
I heard my mother said, be careful on the way down.
On the way down, I fell down on top of a very tall tree.
I cried for help but nobody saw me on top of the tree.
Then, I tripped on a tree branch and fell down the tree.
When I woke up, I found myself on the floor.